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Vibrant red to green gradient Tall stem plant Medium to high lighting Ammannia gracilis is a stem plant that requires high light and CO2 to show vibrant red and pink colors. It can also thrive under medium light but may retain a more yellow to green color. In its underwater form, Ammannia...

Unique banana shape Easy care Grows lily pads Banana plants have been a staple of the aquarium hobby for many years because of their ease of care and visual impact. The banana plant gets its name because its tubers (where nutrients are stored) are shaped like a bunch of bananas. Once established,...

Skully/Cap Style Beanie Breathable Acrylic Material Stretchable & Comfortable This stylish "skully" or cap style beanie will have you looking cool and feeling warm! Perfect for cool mornings, crisp evenings, or anytime during the day when the weather is a little chilly and you want to keep your head and ears...

Long Knit Beanie Double Layer Construction Stretchable & Comfortable This stylish fold over cuff beanie will have you looking cool and feeling warm! Perfect for cool mornings, crisp evenings, or anytime during the day when the weather is a little chilly and you want to keep your head and ears warm....

Splits CO2 between multiple aquariums Individually adjustable CO2 output Easy to install Easily run CO2 from one cylinder to multiple different aquariums using expansion manifold blocks. These handy manifolds screw into the existing CO2 regulator system and to each other for the ability to link up to 5 expansion manifold blocks...

Branches out like a Christmas Tree Easy to care for 100% clean with no algae, duckweed, or snails A moss specialty from Brazil, 1-3 cm tall, called "Christmas tree moss'', because of its side branch structure which distinguishes it from ordinary Vesicularia dubyana and looks like fir tree branches. It is more...

Prevents fungal infections on fish eggs Treats nitrite and cyanide poisoning in fish Treats fungus and external protozoan parasites on fish Methylene blue is commonly used by fish breeders to prevent and treat fungal infections on fish eggs, as well as treat fish with cyanide and nitrite poisoning. As a secondary...

Bright Colors Durable and long-lasting Water-resistant The White Cloud Mountain Minnow is a classic. With their colors that almost look neon under the right light. Show off your love for these fish with a decal sticker from Aquarium Co-Op. Perfect for your phone, laptop, water bottle, or anything else you can think...

Handcrafted Durable quality Collectible Show your support and add style to your tank with this Aquarium Co-Op hand painted sign. It is made of ceramic and glazed to be completely safe for fish tanks. This little sign will hold up long term and look great for many years. A conversation starter...

Comfortable and soft 50% cotton and 50% polyester fleece Sturdy metal zipper Stay warm and comfy with our jet black fleece hoodie. A small, green Mbu puffer is printed on the front left side, while the green Aquarium Co-Op logo is prominently featured on the back. Plus, it comes with a sturdy...

Special blend of carbonate salts for African cichlids Raises pH and KH (carbonate hardness) Economical dry powder formula Fritz Rift Lake Cichlid Buffer is a special blend of carbonate salts formulated to replicate the natural habitat of African cichlids by increasing KH (buffering capacity), alkalinity, and pH. When used as directed,...

Rare rhizome plant that's sustainably farm-raised Dark green, oblong leaves with wavy edges 100% clean with no algae, duckweed, or snails This gorgeous aquarium plant has wavy-edged, oblong leaves that are about 2.5 inches (6 cm) long and 0.5–0.75 inch (1–2 cm) wide. The deep green leaves are speckled with...

Adjustable snapback Breathable mesh FlexFit design for comfort Show off how much you love Murphy and the Co-Op with this stylish and breathable mesh back hat. Much like the regular mesh back hat, it is designed with FlexFit to comfortably fit around your head and remain comfortable as long as...

Produces Small CO2 Bubbles Made of Break-Resistant Acrylic Easy to Install This CO2 diffuser from Aquario is one of the best on the market. It features a small, brown ceramic disk which does an excellent job of breaking down CO2 gas into the finest mist of bubbles. The finer the bubbles,...

Unique tiger stripes or spots Low light and easy to care for 100% clean with no algae, duckweed, or snails Cryptocoryne nurii is a rarer crypt species that has the same size and ruffled leaf texture as C. wendtii but has distinctive spotting that looks like tiger stripes. This low light...

Great gift for aquarists Arrives quickly via email Does not expire Gift cards are the perfect gift for your favorite fishkeeper, whether it's for a birthday, Christmas, or just to say thank you for the fish help. Our gift card will be emailed to you, and then you can print it...