Discussion forum and reef community, also contains articles, spotlights, classifieds and gallery.

Podcast for marine and reef tanks related discussions. Forums and live podcast.

Dedicated to reefing questions and answers along with live chats.

Online community including forums, a photo gallery, and product reviews.

Includes discussion boards, live chat, articles, and images relating to the marine reef aquarium hobby.

Community where enthusiasts can join together to exchange quality information and ideas.

Community for sharing information and experiences, contains beginner-friendly forums, articles, repository, calculators, identification, gallery, and LFS map for Dallas, TX, area.

A forum for marine fish and coral keeping.

Forum including topics for beginners as well as advanced reefkeepers, special interests such as nano tanks, and reef clubs.

Offers discussion on facets of reefkeeping such as nanos, large tanks, SPS, clams, and fish.