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20 Gallon Freshwater Fish

114 products
Cobalt Blue Lobster
(Procambarus clarkii)
Starting at $29.99
…one lobster. To house multiple lobsters, provide at least 20 gallons per lobster and include plenty of rocks and plants as cover.The Cobalt Blue Lobster is generally peaceful, except with its own kind. They will not typically bother fish, unless they are very small, and slow enough for the lobster…
Freshwater Neon Blue Goby
(Stiphodon sp.)
Starting at $24.99
The Neon Blue Goby is a remarkable fish newly available from the Far East. With its many attractive characteristics, this diminutive fish is sure to cause a sensation among freshwater aquarium hobbyists. The most prominent trait of this freshwater goby is its stunning coloration. The male Neon Blue…
Pitbull (LDA 25) Plecostomus
(Parotocinclus sp.)
Starting at $12.99
…avoid keeping it with larger, aggressive fish that might see the Pitbull Pleco as food. Native to Brazil, the Pitbull Pleco does well singly in 20 gallon aquariums. However, small groups of these peaceful fish are best kept in aquariums of 30 gallons or more. They prefer soft sand substrate,…
Licorice Gourami
(Parosphromenus deissneri)
Starting at $11.49
…a well planted tank of at least 20 gallons or larger. It needs soft, slightly acidic water with good filtration. It is a peaceful, gentle fish but does best in a species only tank. If this fish is housed in a community tank it should not be bred. The other fish in the community tank should be…
Purple Snowflake Guppy (Pair)
(Poecilia reticulata)
Starting at $7.99
…that it matures quickly, makes it an excellent fish for beginning hobbyists. The Purple Snowflake Guppy boasts a blue, green and silver body with purple "snowflakes" falling on its tail. The Purple Snowflake Guppy requires a tank with at least 20 gallons of water, and is very tolerant of changing…
JBJ Cubey Nano Complete Aquarium Kit - 20 Gallon, White, Freshwater
Starting at $449.99
…Fine Blue Nylon Fish Net - 12.5cmMarineland Silk Plant C4 PackHagen Marina Naturals Rock Outcrop - XLarge w/HolesCaribSea Instant Aquarium Freshwater Substrate - 20 lb, Peace RiverCOMPLETE AQUARIUM KIT + STAND INCLUDES:JBJ Cubey Nano Cabinet Stand - 20 Gallon, White20 GALLON AQUATIC LIFE PACK…
Cobalt Aquatics Microvue3 20 Nano Aquarium Kit - 5.3 gallon
Starting at $119.99
…Clearvue 20 internal filter, 6-watt LED light, glass top, and a foam under pad. The Microvue3 aquariums are the perfect choice for planted tanks, bettas, glow fish, shrimp tanks, goldfish, small community fish, and even a nano reef.Cobalt Aquatics Mini LEDThe Cobalt Aquatics Microvue3 20 Nano…
Brightwell Aquatics Florin-I for Biotope & Freshwater Planted Aquariums
Starting at $9.85
…formulated specifically for ornamental freshwater and brackish water crustaceans maintained in planted and/or biotope aquariums, Brightwell Aquatics Florin-I for Biotope & Freshwater Planted Aquariums also helps prevent iodine-deficiency issues (such as goiter) in fish by providing critical iodine…
Aqueon QuietFlow® LED PRO Power Filters
Starting at $20.99
… QuietFlow 20 LED PRO 125 30 Gallons Large SIZE 20/75 QuietFlow 30 LED PRO 200 up to 45 Gallons Large SIZE 30/50 QuietFlow 50 LED PRO 250 50 Gallons Large SIZE 30/50 QuietFlow 75 LED PRO 400 90 Gallons Large (2) SIZE…
Seachem Equilibrium RO Water Conditioner for Freshwater Planted Aquariums
Starting at $7.57
…gallons.For soft water - 1/2 teaspoon per 10 gallons of water. Medium hardness - 2 teaspoons per 10 gallons. Hard water - 3 teaspoons per 10 gallons. To raise mineral content/general hardness (GH) by 1 meq/L (3 dH), add 16 g (1 tablespoon) for every 20 gallons when setting up an aquarium or when…
Marineland pH Regulator
Starting at $5.49
…Regulator maintains ideal pH in the range of 7.2 to 7.8.Directions:Shake well. One teaspoon (5ml) treats 10 gallons. One capful (10ml) treats 20 gallons. Each side hash mark is approximately 20ml and treats 40 gallons.Keep out of reach of children.General InformationAdd Marineland pH Regulator…
Fluval Flex Complete Aquarium Kit 15 Gallon, Black, Freshwater (Green Décor)
Starting at $74.99
…Cleaner - SmallAPI Freshwater Master Test KitPython Pro-Clean Gravel Washer Siphon Kit - 12"Marina® Fine Blue Nylon Fish Net - 12.5cmCaribSea Instant Aquarium Freshwater Substrate -20 lb, Peace RiverHagen Marina Naturals Rock Outcrop - XLargeMarineland Silk Plant C3 Pack15 GALLON AQUATIC LIFE PACK2…
Seachem Fresh Trace
Starting at $10.44
…elements is crucial to continued fish health. Simply add Seachem Fresh Trace to your freshwater aquarium twice weekly to help your fish thrive.500 mL treats 400 L (100 US gallons) for 2-4 months. DirectionsUse 1 capful (5 mL) for every 80 L (20 US gallons) twice a week. IngredientsCalcium…
Starting at $12.99
…of probiotic bacteria to help reduce fish loss in your tank. Fish-safe formula contains no chemicals, pesticides, or copper. Use 2 tsp. per 20 gallons the first dose, and then use 1 tsp. per 20 gallons each week. 16 oz. treats up to 1,720 gallons at maintenance dose.How it WorksThe probiotics…
TheraP Water Conditioner
Starting at $14.37
…product to use when fish overpopulation exists. 16 oz treats a 65-gallon aquarium for over 14 months. Suggested use: (Includes measuring cup) Day 20-30gallons 55-65gallons 75gallons 1 30 ml 60 ml 75 ml 8, 15,22 & 29 20 ml 40 ml 50 ml Everyotherweek 10 ml 15 ml 20 ml Bottlelasts 77 wks…