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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...

Soft, bushy stem plant Light green, thin leaves Easy care with medium light Mayca fluviatilis is a soft, bushy stem plant with thin leaves that are a light green in color, and its fine texture contrasts nicely against larger-leaved plants. Because of its unique, moss-like appearance, it is commonly referred to as...

Unique marbled leaves like little watermelons Tall stem plant that forms bushy clusters Easy to grow even for beginners Lindernia rotundifolia 'Watermelon' is a top seller at the Aquarium Co-Op fish store because of its extraordinary appearance and easy care. This marbled variety has rounded, green leaves with variegated striping that...

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...

Fitted Lightweight FlexFit design for comfort Show off your Aquarium Co-Op pride with this classic black Aquarium Co-Op embroidered hat. Designed with FlexFit to fit snugly around your head, this hat will keep you looking great and feeling comfortable all year long. The logo is embroidered in white on the...

Only 1 print run Made of Metal Merry Coopmas Are you looking for the perfect holiday gift idea for the fish keeper in your life? Are you looking for a way to bring your fish hobby to your tree? Well, the Aquarium Co-Op "Merry Coopmas" ornament is here. Some of you may...

Direct fit with our pre filter sponges Adjustable distance from back wall Black to blend in with backgrounds Optimize your Marineland hang on back filters by swapping the intake. Switching from the square intake to ours allows you to run a pre filter sponge. This extends the life of your media...

Unique and Collectible Fun to Fidget With Detailed Engraving The Aquarium Co-Op 'Enjoy Nature Daily' coin is the latest addition to the collection. Both eye-catching and fun, this metal coin makes a great fidget device for restless hands. It features an all over green design with our logo and favorite slogan...

Designed for pressurized CO2 systems Essential for prevent water flooding out of the aquarium Durable stainless steel construction This check valve can only be used with a pressurized CO2 cylinder. The air from a regular air pump will not be able to pass through it. A check valve is used within airline tubing...

Special blend of salts for African cichlids Raises GH (or general hardness) Includes probiotics to increase beneficial bacteria Fritz Rift Lake Cichlid Probiotic Salt is a special blend of salts formulated to replicate the natural habitats of African cichlids, These essential trace elements raise the GH or general hardness of the...

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,...

Completely balanced meat- and plant-based diet Promotes healthy shell and body growth Great for aquatic reptiles and amphibians Feed your turtles, aquatic lizards, newts, frogs, and axolotls Xtreme's nutritious food sticks made of high-quality meats and plants. To promote healthy shell and body growth, they included a mix of essential vitamins...

Nutritious Goldfish Diet in Gel Form Easily Digestible Feeds Fish For Extended Time Repashy Super Gold is formulated to be an excellent diet for Goldfish. It is easily digestible and is packed full of nutritious ingredients including krill, spirulina algae and black soldier fly larvae. This food naturally brings out...

Rare nano plant with small, elongated leaves Farm-raised and not wild-harvested 100% clean with no algae, duckweed, or snails Bucephalandra 'Needle Leaf' is a rare and beautiful aquarium plant that has small, elongated leaves about 0.5–0.75 inch (1–2 cm) long. The deep green leaves are speckled with small, white dots and...

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...

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...