Treats bacterial infections Safe for aquarium plants Safe for shrimp, snails, and other invertebrates Fritz Maracyn® is a specially compounded broad-spectrum antibiotic (erythromycin) which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. It was developed for complete but gradual dissolution in water. It...

Quickly Clears Cloudy Water Safe For All Fish, Plants and Invertebrates Improves Filter Efficiency Fritz Crystal Clear is best suited for use on cloudy or hazy aquarium water where filtration alone isn't enough to clear it. The clarifier works by pulling together the free floating particles in the water which...

Tall background plant Great cover for fish Easy to grow Not available to be shipped to Hawaii and Alaska. Vallisneria (also known as "val" or "straight vallisneria") has been a popular choice in the hobby because of its ease of care and long, grass-like appearance. Its hardiness makes it great for...

Stimulates growth in root-feeding plants Full of essential plant nutrients and minerals Safe for shrimp, snail, and fish If you have rooted plants in your aquarium, Easy Root Tabs are a great option to give your plants even more nutrients than substrate and fish waste alone. They're packed with mineralized top...

Easy to grow Colorful red leaves Fast-growing once established Not available to be shipped to Hawaii and Alaska. The dwarf aquarium lily is a unique plant with triangular-shaped leaves, which can be pink or red in color. It grows leaves under the water's surface, as well as lily pads that reach...

Air collar makes smaller bubbles for improved performance Easy Flow accessory increases water circulation Coarse, anti-clogging sponge Sponge filters offer reliability and hassle-free operation. With no moving parts, all you need is an air pump with some airline tubing, and you've got a filter that is fully contained within your aquarium....

Smaller type of anubias Hardy with thick leaves Easy to grow in low light Not available to be shipped to Hawaii and Alaska. Anubias Nana is a smaller variant of Anubias barteri, but not as small as Anubias Nana Petite. Its leaves are deep green in color, Anubias Nana is rather...

Beginner-friendly fertilizer for great plant growth Easy-to-use measuring cap for quick dosing Safe for fish, shrimp, and snails If you only get one fertilizer for your aquarium plants, then Easy Green is the one you want. As our #1 best-selling product, this all-in-one liquid fertilizer contains all the essential nutrients...

Cleans algae and hard water stains Non-toxic and fragrance-free Use 1 per tank to avoid cross contamination Stop spending hours scrubbing algae off the sides of your tank and use an algae scrubber sponge instead. Add just a little bit of elbow grease, and algae, hard water stains, and dirt won't stand...

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

Automatically feeds fish up to 4 times daily Runs on long-lasting, rechargeable battery 1-year warranty USB Type C Charging Not available to be shipped to Hawaii and Alaska. The Aquarium Co-Op Auto Feeder is perfect for everyday use whether you're at home or away from your fish tanks. Never over or underfeed...

Durable, heavyweight glass Easy-to-read markings 1 ounce capacity This useful little glass is a great tool for measuring liquids in either teaspoons, tablespoons, ounces, or milliliters. It has markings for each measurement and also features the Aquarium Co-Op logo on the front in green. Great for when it comes to dosing medications,...

Only 6 Ingredients + Vitamin Pack Extremely long floating time High protein formula with krill and anchovy Our Easy Community Floating Pellets are made of 6 main Ingredients. The majority of the food comes from three high quality protein sources: Whole Anchovy Meal, Whole Krill Meal and Whole Shrimp Meal. To hold the...

Only 6 Ingredients + Vitamin Pack Stays suspended in water Feeds small fish, fry, and shrimp If you love keeping small fish and dwarf shrimp, this is the food for you. Unlike your typical fish flakes and pellets, this irresistible small food stays swirling in the water column forever, making it the...

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...

Thin, grass-like blades Carpeting plant Medium to high lighting Not available to be shipped to Hawaii and Alaska. Dwarf hairgrass is a moderately easy plant to grow. Many aquarists use dwarf hairgrass to achieve a lawn type of effect because of its thin, grass-like leaves, though this requires medium to high lighting....