Seachem Aquarium Products – Water Conditioners, Filtration & Fish Care

Seachem is the gold standard for aquarium chemistry. From Prime — the most trusted dechlorinator on the market — to the comprehensive Flourish plant fertilizer line and Stability beneficial bacteria, Seachem products deliver consistent, professional results for freshwater, planted, and reef aquarists.

Shop the full Seachem catalog: water conditioners, plant supplements, buffer systems, filter media, and fish health treatments. Seachem pairs beautifully with live planted aquariums, freshwater fish, and shrimp tanks. Fast shipping nationwide from Wyoming.

Seachem FAQ

What is Seachem known for?

Seachem is a leading manufacturer of aquarium water conditioners, biological filtration media, fertilizers, and fish medications trusted by hobbyists worldwide.

What is the most popular Seachem product?

Seachem Prime is one of the most widely used water conditioners in the aquarium hobby due to its ability to remove chlorine, chloramine, and detoxify ammonia.

Can Seachem products be used in planted aquariums?

Yes. Products such as Flourish, Flourish Excel, and Flourish Trace are commonly used in planted freshwater aquariums.