Clear-for-Life Deluxe 300-Gallon 96"Lx24"Wx30"H Rectangular Acrylic Aquarium. $6,875.00.50 gallon fish tank/aquarium. Austin, TX. $65. 10 gallon fish tank. Austin, TX. $25. Fish Tank Lot. Georgetown, TX. $15. Fish Bowl Extra Large I think it may be 5 gallons New never used. Austin, TX. $25 $28. Fish Tank Pump. Buda, TX. $20 $25. fish aquarium with accessories. Kyle, TX. $60. 40 gallon aquarium. Austin, TX. $80. 20 gallon fish tank.Rubbing alcohol. Rags / paper towels. Painter's tape. Aquarium-safe silicone. Latex gloves. 1. Clean the aquarium and remove the old silicone. You need the aquarium to be completely clean to ensure a good seal. Vacuum it out, wipe all the gunk off the glass, and then start scraping off the old silicone.Step 2: Use a straight razor blade or scraper to remove the old silicone from the corners inside the tank. Don’t push the razor scraper into the silicone too roughly or you could break the seam between the glass panels. In addition, only use steel razor blades and metal scrapers for glass aquariums.SeaClear Acrylic Fish Tank 15 Gallon Hexagon. SeaClear 15 Gallon Deluxe Hexagon. Durable and clear. Comes with reflectors and electrical light fixtures. No metal frame keeps the design nice and clean. Check price. If you’re looking for a 15 gallon acrylic fish tank then the SeaClear is a fantastic option for you.55 gallon aquarium. Arlington, TX. $150. 75 Gal Fish Tank With Stand. Burleson, TX. $75. Fish Tank. North Richland Hills, TX. New and used Aquarium for sale in Arlington, Texas on Facebook Marketplace.This fish tank new at the moment is £3150.00 - reduced to £2519.99 and is on sale at swa. Colchester, Essex. £495. 7 days ago. 5. Aquarium Carbon-Dioxide CO2 kit for plant growth in fish tank . CO2 kit for aquarium Unused new starter set (purchased for £69.95) Full kit: 95g CO2 cylinder & stand, regulator valve, diffuser, non-return valve ...So, get comfortable, and let’s begin our foray into aquarium keeping. Contents. 1 How to Start a Fish Tank. 1.1 Tank Size. 1.2 Glass or Acrylic. 1.3 Location. 1.4 Other Gear and Equipment. 2 Fish and Plant Life for Your Beginner Fish Tank. 2.1 Clean Your Aquarium. 10 Gallon Fish Tank. Dearborn Heights, MI. $200. Corner fish tank with stand. Mt Clemens, MI. $1. Saltwater/freshwater tanks for sale! Livonia, MI. New and used Aquarium for sale in Detroit, Michigan on Facebook Marketplace. Buy and sell used aquarium with local pick-up or shipped across the country. Log in to get the full Facebook Marketplace experience. Log In. Learn more. Marketplace › Pet Supplies › Fish Supplies › Fish Aquariums. Aquarium Near Parris Island, South Carolina. Filters. $30. fish tanks. Beaufort, SC. $50. Fish Tank Decor. Port Royal, SC. $100 $120. Fish Tank … 2007 Angler 220 W/A. $26,500. Portsmouth. Fish tank w/stand, filter & light. $125. NEW & USED Equipment Saunas, Bemer EVO Pro Cold Plunges Massage Chairs. $0. Rhode Island. Wanted Old Motorcycles 📞1(800) 220-9683 www.wantedoldmotorcycles.com. New and used Aquarium for sale in London, United Kingdom on Facebook Marketplace. Find great deals and sell your items for free. Marketplace › Pet supplies › Fish supplies › Fish aquariums. Aquarium near London, United Kingdom. Filters. £50 £60. Fish tank with fish. Greenhithe. £100 £150. 100 litre fish tank. West Malling, Kent. £50. BiOrb … New and used Aquarium for sale in Pittsburgh, Pennsylvania on Facebook Marketplace. Find great deals and sell your items for free. 75 gallon aquarium fish tank and filter. $600.00. Local Pickup. or Best Offer. Get the best deals on Aquariums & Tanks 75 gal. Tank Capacity when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices.Clear-for-Life Deluxe 300-Gallon 96"Lx24"Wx30"H Rectangular Acrylic Aquarium. $6,875.00. New and used Aquarium for sale in Pittsburgh, Pennsylvania on Facebook Marketplace. Find great deals and sell your items for free. Chicago, IL. $40. Fish tank. Chicago, IL. $30$40. Fish Tank. Alsip, IL. New and used Aquarium for sale in Chicago, Illinois on Facebook Marketplace. Find great deals and sell your items for free.Aquarium sands and other substrates can also be used to improve the chemistry of the water. For instance, if your fish require hard water, limestone gravel or a coral substrate can help you achieve the correct hardness and alkalinity levels. Moreover, substrate can provide a safe home for fish eggs. Larger-sized substrates allow eggs to …A$180A$200. Fish tank tropical. Sydney, NSW. A$80. Fish Tank, filter, decorations, water heater, accessories, food & chemicals, and pebbles. Sydney, NSW. New and used Aquarium for sale in Sydney, Australia … 20 gallon aquarium, fish tank with stand heat lamp, UV light and bowl. Spring Hill, FL. $100. Fish Tank 20”gallon. Spring Hill, FL. $50 $55. Fish tank. Tampa, FL. New and used Aquarium for sale in Spring Hill, Florida on Facebook Marketplace. Indoor Used 4.8L Clear Plastic Fish Bowl Aquarium, Plastic Fish Tank for Sale $0.50 - $1.80Aquarium Salt Reef Crystals 200 Gal. Punta Gorda, FL. $40. 6.5 Gallon Fish Tank. North Port, FL. New and used Aquarium for sale in Punta Gorda, Florida on Facebook Marketplace. Find great deals and sell your items for free.New and used Aquarium for sale in London, United Kingdom on Facebook Marketplace. Find great deals and sell your items for free. Marketplace › Pet supplies › Fish supplies › Fish aquariums. Aquarium near London, United Kingdom. Filters. £50 £60. Fish tank with fish. Greenhithe. £100 £150. 100 litre fish tank. West Malling, Kent. £50. BiOrb … 10 Gallon Fish Tank. Dearborn Heights, MI. $200. Corner fish tank with stand. Mt Clemens, MI. $1. Saltwater/freshwater tanks for sale! Livonia, MI. New and used Aquarium for sale in Detroit, Michigan on Facebook Marketplace. Melbourne, VIC. A$50. Melbourne, VIC. A$25. Melbourne, VIC. New and used Aquarium for sale in Melbourne, Victoria, Australia on Facebook Marketplace. Find great deals and sell your items for free. Used Fish Tank And Stand Complete With Fish. $350.00. or Best Offer. $80.32 shipping. Sponsored. 75 gallon aquarium fish tank with stand. $500.00. or Best Offer. $0.00 … New and used Aquarium for sale in East Dayton, Ohio on Facebook Marketplace. Find great deals and sell your items for free. Used fish tank for sale. AU $1,000.00. Local pickup. or Best Offer. Fish Tank, 182 litres, comes with Stand Aqua One (Please Read Description) AU $400.00. 0 bids Ending 29 Apr at 18:06 AEST 5d 20h Local pickup. 500 litre fish tank with filter, light ,parts ,stand and fish if wanted. AU $1,500.00.Ultum Nature Systems Dual All in One Complete Rimless Aquarium for Freshwater & Saltwater Tanks, Triple-Chamber Filter System Included, Integrated Fish Tank Kit w/Sleek Design - 7 Gallon, 30A, Black. 9. $16499 ($164.99/Count) FREE delivery Apr 24 - 26. Or fastest delivery Tue, Apr 23.fish tank. Detroit, MI. $20. Fish tank/ Reptile tank. Detroit, MI. $15. Fish Reptile Tank. Detroit, MI. $10. fish tank. Livonia, MI. $40. Fish tank. St Clair Shores, MI. $135$195. Fish Tank …Beneficial bacteria play a critical role in your aquarium and you don’t want to accidentally kill them. Basically, knowing how to grow and support these organisms in your tank keeps your pet fish alive. Good bacteria in your fish tank help to maintain the water quality by being a vital part of the nitrogen cycle in the system.Buy and sell aquarium equipment and aquarium fish on AquaBid.com. Sign up and begin to buy and sell - auction or buy it now.Gently used like new Aqueon 29 Gallon glass aquarium tank. $38. Brooklyn 55 Gallon Aquarium and stand. $200. Arden Heights 10 gallon aquarium with everything included!! $0. Harlem / Morningside Aquarium, Red 5gal. $5. Hollis Whole lot of aquarium fish stuff (food, net, scrubber, pump) $10. Brooklyn Fluval LED 36" Aquarium Light. $80. staten …Chula Vista, CA. $100. 20 Gallon Fish Tank. San Diego, CA. $20. 20 Gallon Long Aquarium/Terrarium Tank. El Cajon, CA. New and used Aquarium for sale in San Diego, California on Facebook Marketplace. Find great deals and sell your items for free. New and used Aquarium for sale in Olympia, Washington on Facebook Marketplace. Find great deals and sell your items for free. Reuse fish tanks for plant tanks Conclusion. As you can see, fish tanks are incredibly versatile and can be used for many different purposes. From providing a secure environment for fish and other aquatic species to transforming the tank into an art installation piece or mini-greenhouse, fish tanks offer endless possibilities when it … Top Fin Underwater Worlds Fishy Corner Aquarium .5 gallon Beta Tank—BRAND NEW! $36.00. or Best Offer. $10.50 shipping. Dog crate. Bird cages. Dog strollers. Dog collars. Fish tank decorations. Find great deals on Fish tanks in Akron, OH on OfferUp. Post your items for free. Shipping and local meet-up options available. Winnipeg, MB. CA$25. 2.5 gallon aquarium LED light. Winnipeg, MB. CA$80. 10 Gallon Fish Tank with all accessories. Winnipeg, MB. New and used Aquarium for sale in Winnipeg, Manitoba on Facebook Marketplace. Find great deals and sell your items for free.50 gallon fish tank/aquarium. Austin, TX. $65. 10 gallon fish tank. Austin, TX. $25. Fish Tank Lot. Georgetown, TX. $15. Fish Bowl Extra Large I think it may be 5 gallons New never used. Austin, TX. $25 $28. Fish Tank Pump. Buda, TX. $20 $25. fish aquarium with accessories. Kyle, TX. $60. 40 gallon aquarium. Austin, TX. $80. 20 gallon fish tank.Aquamanta nano 6 90l salt water fish tank also comes with high precision portable salinity refractometer water tests etc. Bridge of Earn, Perth and Kinross. £45. 28 days ago. Find great local deals on second-hand aquariums for sale in Dundee Shop hassle-free with Gumtree, your local buying & selling community.Get the best deals on All Water Type Aquariums and Tanks when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices. ... Marina Betta Small Fish Tank 0.7 Gal Aquarium Kit Self-Cleaning System White. $34.31. $6.95 shipping. 4 watching. SPONSORED. biOrb CLASSIC 15 … 2. Superfish QVBIG 60 litre LED Aquarium. Fish tank only 6 months old excellent condition including built-in filter water heater gravel and plants H440 W400 D400. Carnoustie, Angus. £50. 10 hours ago. 1. Fish Tank and Full Set Up. 140L fish tank and full set up. Schiller Park, IL. $20. 5 1/2 Gallon Aquarium - Brand New. Chicago, IL. Free. 55 gallon fish tank and equipment with it plus some accessories. Merrillville, IN. $30$50. 3.5 gallon glowfish fish tank. Ultum Nature Systems Dual All in One Complete Rimless Aquarium for Freshwater & Saltwater Tanks, Triple-Chamber Filter System Included, Integrated Fish Tank Kit w/Sleek Design - 7 Gallon, 30A, Black. 9. $16499 ($164.99/Count) FREE delivery Apr 24 - 26. Or fastest delivery Tue, Apr 23. Top Fin Underwater Worlds Fishy Corner Aquarium .5 gallon Beta Tank—BRAND NEW! $36.00. or Best Offer. $10.50 shipping. Buy and sell aquarium equipment and aquarium fish on AquaBid.com. Sign up and begin to buy and sell - auction or buy it now.Usually, a good scrub with an algae scraper in warm water will remove the algae and dirt from rocks and plants. For particularly stubborn cleaning problems, prepare a 10 percent bleach solution and soak the items for 15 minutes. Scrub any remaining residue off, rinse well in running water, and let air dry to eliminate residual bleach.Harrison, AR. $65$125. Fish Aquarium. Summit, AR. $30. Fish Tank. Marshall, AR. New and used Aquarium for sale in Harrison, Arkansas on Facebook Marketplace. Find great deals and sell your items for free.STEP 4: ADD ACTIVATED CHARCOAL. There is much debate over whether you need activated charcoal or not, but NASA recommends using it to help filter the water and help prevent growth of fungi. Needless to say, I used a layer of activated charcoal. Don’t go too crazy with it, but make one thin layer. 40 Gallon Aquarium Fish Tank Rimless Ultra Clear Low Iron Glass Aquarium Tank. Brand New. $351.49. Was: $369.99. or Best Offer. Free shipping. Sponsored. To clean your fish tank using a vinegar solution: Transfer the vinegar solution to a spray bottle, and spray down your tank generously. Let the solution sit for anywhere between 10 minutes and a few hours, depending on the state of your aquarium. Soak your fishkeeping equipment in the vinegar solution for at least 10 minutes.Put the tank on the aquarium stand, and pour in the substrate. Place the filter and heater in the tank, and add decorations to hide the equipment. Fill the aquarium with room temperature water and dose the dechlorinator. Plant the aquarium plants. Follow this guide for steps on how to set up a fish tank with live plants.Also, accept fish tanks, aquarium accessories, and equipment; Donated aquariums will be used for environmental education. There are various ways to donate old aquarium tanks, and national donation programmes make the process simple. By contributing to any of the organizations mentioned above, you can spread some joy, …Alternatively, simply soak normal paper wipes in alcohol and wipe the glass. Pay attention to the edges of the glass, as even the small pieces of dirt can cause the seal to detach. Before sealing up the walls of the tank, place the duct tape around the edges to avoid the silicon sticking on the glass itself.Usually, a good scrub with an algae scraper in warm water will remove the algae and dirt from rocks and plants. For particularly stubborn cleaning problems, prepare a 10 percent bleach solution and soak the items for 15 minutes. Scrub any remaining residue off, rinse well in running water, and let air dry to eliminate residual bleach.Usually, a good scrub with an algae scraper in warm water will remove the algae and dirt from rocks and plants. For particularly stubborn cleaning problems, prepare a 10 percent bleach solution and soak the items for 15 minutes. Scrub any remaining residue off, rinse well in running water, and let air dry to eliminate residual bleach.100 Gallon Aquarium, Solid Stand, Sump, & Heater Available! New and used Aquarium for sale near you on Facebook Marketplace. Find great deals or sell your items for free. Each month offers a variety of different aquarium equipment such as tanks, stands, lights, heaters, air pumps, and decorations. Store closeouts are also included. The sale is first come first serve, we are unable to hold any used equipment. Upcoming Sale Dates in 2024: Saturday April 13th, 10:30 – 12:00. Saturday May 11th, 10:30 – 12:00. 2 55 Gallon Fish tanks. $75. shakopee New 25 ft with 250 and trailer. $62,999. grand rapids 150 Gallon Tall Aquarium With Fish. $700. COON RAPIDS ... used aquarium fish tanks. Pre-Owned · Juwel. $700.00. or Best Offer. Free shipping. Sponsored. Warranty included 120 GALLON GLASS room divider peninsula aquarium …Glasgow, United Kingdom. £100 £170. Fish tank. Motherwell, North Lanarkshire. £40. Aquarium cubes x3. Motherwell, North Lanarkshire. New and used Aquarium for sale in Kirkcaldy, Fife on Facebook Marketplace. Find great deals and sell your items for free.New and used Aquarium for sale in Olympia, Washington on Facebook Marketplace. Find great deals and sell your items for free.Laplace, LA. $200. Fish Tank. Morgan City, LA. $100 $200. huge fish tank. Galliano, LA. New and used Aquarium for sale in Houma, Louisiana on Facebook Marketplace. Find great deals and sell your items for free.The colors of the aquarium substrates have a wide range, from artificial colors to natural soft colors. The substrate color should be selected according to the tank setup and the type of fish that you are gonna put. If you need to set up a natural-looking aquarium, It’s better to use natural colors like black or white.Aquarium Near Sioux Falls, South Dakota. New and used Aquarium for sale in Sioux Falls, South Dakota on Facebook Marketplace. Find great deals and sell your items for free.New and used Aquarium for sale in Sheffield on Facebook Marketplace. Find great deals and sell your items for free.No aquarium is complete without the accoutrements that are used to decorate it. Crystal Clear Aquariums offers a wide selection of marine retail alongside our fish tanks and …Used Aquarium's For Sale Fort Myers. We offer the largest variety of Used Aquarium's, Used Reptile Tanks in Fort Myers and surrounding areas. Our Used Fish Tank's come in all sizes from 220 Gallon Reef Tanks to small 30 Gallon Breeder Tanks. We also stock a good selection of Used Aquarium's that can be used at sumps for saltwater reef … Stow, OH. $15. Cleveland, OH. $45$50. Akron, OH. New and used Aquarium for sale in Cuyahoga Falls, Ohio on Facebook Marketplace. Find great deals and sell your items for free. Tucson, AZ. $50. Fish tank decor. Tucson, AZ. $200 $250. 60 Gallon Aquarium with Cabinet Stand + Extras. Tucson, AZ. New and used Aquarium for sale in Tucson, Arizona on Facebook Marketplace. Find great deals and sell your items for free. Fish Tank Stand Steel Aquarium Aqua Culture 10-15 Gallon Strong Durability Home. $69.83. Was: $73.50. or Best Offer. Free shipping. FLEX 32.5 Gallon Aquarium Stand Only - BLACK - Fluval (1) 1 product ratings - FLEX 32.5 Gallon Aquarium Stand Only - BLACK - Fluval. $249.99. Free shipping.New and used Aquarium for sale in London, United Kingdom on Facebook Marketplace. Find great deals and sell your items for free. Marketplace › Pet supplies › Fish supplies › Fish aquariums. Aquarium near London, United Kingdom. Filters. £50 £60. Fish tank with fish. Greenhithe. £100 £150. 100 litre fish tank. West Malling, Kent. £50. BiOrb …So, get comfortable, and let’s begin our foray into aquarium keeping. Contents. 1 How to Start a Fish Tank. 1.1 Tank Size. 1.2 Glass or Acrylic. 1.3 Location. 1.4 Other Gear and Equipment. 2 Fish and Plant Life for Your Beginner Fish Tank. 2.1 Clean Your Aquarium.A$180A$200. Fish tank tropical. Sydney, NSW. A$80. Fish Tank, filter, decorations, water heater, accessories, food & chemicals, and pebbles. Sydney, NSW. New and used Aquarium for sale in Sydney, Australia …20 gallon fish tank With Accessories. (cleaning Supplies, Fish, Food, 6 filters) $225.00. Local Pickup. or Best Offer. Get the best deals on Aquariums & Tanks 20 gal. Tank Capacity when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices.Aquarium Near Sioux Falls, South Dakota. New and used Aquarium for sale in Sioux Falls, South Dakota on Facebook Marketplace. Find great deals and sell your items for free. Aquarium Chiller used 1/10 HP JBJ Artica Aquarium Fish Tank Chiller. $300. brentwood / oakley 160 Gallon Glass Fish Tank with Stand, Canopy, and Accessories ... Get the best deals on Reef Tanks when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands ... Red Sea Max 130d Fish Tank And Stand Bundled With Extras. $400.00. or Best Offer. $200.00 shipping. Waterbox AIO 25 Peninsula + Stand + All Accessories . $1,250.00. or Best Offer. Cleveland, OH. $150 $200. Fish tank/stand and filter. Cleveland, OH. $100. Fish tank 40 gal. Brunswick, OH. New and used Aquarium for sale in Cleveland, Ohio on Facebook Marketplace. Find great deals and sell your items for free. Melbourne, VIC. A$50. Melbourne, VIC. A$25. Melbourne, VIC. New and used Aquarium for sale in Melbourne, Victoria, Australia on Facebook Marketplace. Find great deals and sell your items for free. Rosyth, Fife. £150. 6 days ago. 4. 54 litre fish tank for sale comes with full set up. 54 litre fish tank for sale comes with heater,filter,air pump and air Stone, aquasafe,blood worms and some food tank was only bought in January for 120 no leaks also comes with some ornaments to looking for £40 for quick sale thanks. Fish tank never been used. Dundee. £200. 250 ltr fish tank. Stirling. £30. Qubiq 30l fish tank. Arbroath, Angus. £40 £50. Fish tank with cabinets. Cupar, Fife. £30. Fish tank. Arbroath, Angus. £80 £100. 90 Liter Fish Tank With everything needed to start. Forfar, Angus. £30. Tropical fish tank, pump and all accessories.
Rubbing alcohol. Rags / paper towels. Painter's tape. Aquarium-safe silicone. Latex gloves. 1. Clean the aquarium and remove the old silicone. You need the aquarium to be completely clean to ensure a good seal. Vacuum it out, wipe all the gunk off the glass, and then start scraping off the old silicone.. Pit puppies near me
Milwaukee, WI. $450 $500. 70 Gallon Fish tank and Stand. Milwaukee, WI. $100. 30 Gallon fish tank with stand $100.00. Milwaukee, WI. New and used Aquarium for sale in Milwaukee, Wisconsin on Facebook Marketplace. Find great deals and sell your items for free. Use good cabinet-grade plywood—it's a standard material used for fish tank stands because of its strength and water resistance. Aquarium Weights . The actual weight of the aquarium will depend on the type of material used. Glass tanks are twice as heavy as acrylic tanks. An empty 20-gallon glass aquarium weighs over 25 pounds, …Get the best deals on 200 gal Aquariums & Tanks when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices. ... (14) 14 product ratings - Coralife Aquarium Fish Tank Water Test Hydrometer 11 INCH. $15.39. Free shipping. 200gallon fish tank with custom Wood …You can check used fish tanks for sale on craigslist, Facebook marketplace, eBay, and many other related online platforms. Especially the second-hand fish tanks for …Also, accept fish tanks, aquarium accessories, and equipment; Donated aquariums will be used for environmental education. There are various ways to donate old aquarium tanks, and national donation programmes make the process simple. By contributing to any of the organizations mentioned above, you can spread some joy, …Aquamanta nano 6 90l salt water fish tank also comes with high precision portable salinity refractometer water tests etc. Bridge of Earn, Perth and Kinross. £45. 28 days ago. Find great local deals on second-hand aquariums for sale in Dundee Shop hassle-free with Gumtree, your local buying & selling community.Check Price & Details on Amazon ». 4. ISTA Cooling System. The ISTA Cooling System is a simple water cooler, used with both fresh water and salt water fish tanks. It could be a great choice, just like the previous devices from above. It comes with a power adapter and cable in the package, plus the cooler itself.Get the best deals on All Water Type Aquariums and Tanks when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices. ... Marina Betta Small Fish Tank 0.7 Gal Aquarium Kit Self-Cleaning System White. $34.31. $6.95 shipping. 4 watching. SPONSORED. biOrb CLASSIC 15 …Jun 5, 2023 · 2. eBay. eBay is a popular online marketplace where you can sell your fish tank. You can list your fish tank for sale and set a price. eBay offers a wide audience, so your fish tank can reach more potential buyers. Remember that shipping a fish tank can be expensive, so offering local pickup is also an option. 3. Chula Vista, CA. $100. 20 Gallon Fish Tank. San Diego, CA. $20. 20 Gallon Long Aquarium/Terrarium Tank. El Cajon, CA. New and used Aquarium for sale in San Diego, California on Facebook Marketplace. Find great deals and sell your items for free. Aquarium Chiller used 1/10 HP JBJ Artica Aquarium Fish Tank Chiller. $300. brentwood / oakley 160 Gallon Glass Fish Tank with Stand, Canopy, and Accessories ... Rosyth, Fife. £150. 6 days ago. 4. 54 litre fish tank for sale comes with full set up. 54 litre fish tank for sale comes with heater,filter,air pump and air Stone, aquasafe,blood worms and some food tank was only bought in January for 120 no leaks also comes with some ornaments to looking for £40 for quick sale thanks.used aquarium fish tanks. Pre-Owned · Juwel. $700.00. or Best Offer. Free shipping. Sponsored. Warranty included 120 GALLON GLASS room divider peninsula aquarium …Aquarium sands and other substrates can also be used to improve the chemistry of the water. For instance, if your fish require hard water, limestone gravel or a coral substrate can help you achieve the correct hardness and alkalinity levels. Moreover, substrate can provide a safe home for fish eggs. Larger-sized substrates allow eggs to ….