Advanced Aquarium Concepts is dedicated to providing accurate, advanced information for the aquarium hobby. It is meant to be more than just another hobbyist site, it is meant to provide much more advanced information that simply cannot be found elsewhere.

Intelligent Freshwater Tropical Fish Aquarium Stocking Calculator and Aquarium Tank/Filter Advisor. Use this site to figure out how many fish to put into your aquarium.

Aquarium forum community. Also has articles.

The free encyclopedia of all things aquatic. Freshwater fish, saltwater aquariums plus amphibians.

Celebrating 65 years as the premier publication for aquarium fishkeeping. Extensive articles and how to guides, forums.