This section breaks down additives by manufacturer: Brightwell Aquatics, Fauna Marin, Seachem, Prodibio, Two Little Fishies, TLC, and others.

This section breaks down additives by type: buffer, vitamins, calcium/kalkwasser, iodine, planted tank, reef aquarium specific, and water treatments.

We carry of measuring cups for adding additives. This is much better than sneakily using the ones in the kitchen. Yes, it's best to have a dedicated measuring device for aquarium additives.

We carry a wide variety of individual CO2 components (reactors, controllers, bottles, bubble counters, etc.) from Ista, Milwaukee, and Hagen. We have complete CO2 kits from Ista.

Calcium Reactors, such as the Reef Octopus Calcium Reactors and Tunze Reactors, are the dream of nerdy advanced marine aquarists and the nightmare of the beginner. We're here to help!

Any aquarist who has ever had a sick fish knows just how stressful and discouraging it can be. If you haven’t had a sick fish, it’s just a matter of time until you do. This is section for help with fish diseases, red cyano bacteria and flatworms.