Fish Information Service - Archive of information covering both freshwater and marine aquariums.

eFishTank.com - Sign up and track your fish tank's chemistry, its setup, water recipes, and receive email reminders when it's time to change the water.

Ultimate Aquarium - Directory of aquarium-related sites.

Fish Link Central - Links directory to sites about fish.

AquaLink - Articles, bulletin boards, a trading board, and a diagnosis system for common diseases.

Fish Index - Photos, information, a forum, and chat room.

FishDoc - Information on fish disease diagnosis, and treatment.

AquaWorld.net - Portal to many fishing sites, and sources of information.

Fish Geeks - Information on freshwater, saltwater, and reef aquariums, and ponds. Formerly the Just Aquaria Web Site.

Aquaria Central - Extensive source for aquarium information.

Aquariumsite.org - Directory of 1000s of aquarium and tropical fish related websites. Links indexed by fish species, with photo thumbnails. Aquarium shopping center.

Allexperts Fish Care - Volunteers answer your questions about caring for freshwater and saltwater fish, as well as operating an aquarium. FAQs and a message board.

AquaBid.com - Free online auctions of livestock and supplies by and for hobbyists.

WasserFest - Articles, tank presentations, discussion boards, and a basic aquarium bibliography.

Cambi's Fish Site - About his freshwater, saltwater, and Discus fish. First aid/problem solver.

AquaWeb Fish Resources - News, photos, forums and a large link list.

AquariumFacts.com - Information for beginners on setting up and maintaining a freshwater or saltwater fish tank.

Aquarium Frontiers - A regularly updated webzine with articles about a variety of aquarium topics.

Tropical Fish Digest - E-Magazine with "how-to" articles on a variety of aquarium-related subjects.

Aquaria Hobbyist - Dedicated to the aquaria hobby. Featuring a chat room, BBS, and a member-submitted photo gallery.

Information and Advice About Fish - How to care for fish and aquariums, with setup, care, and handling instructions.

MEL: Fish and Aquariums - Information on breeding, pet fish, care and feeding. Pictures and online publications helping the beginner to the expert.

Aqua Photo Web - Galleries of hobbyist-contributed aquarium related photos free for use in websites or publications.

Creating a Tropical Aquarium - This is a guide to creating a Tropical Aquarium, and includes advice on maintenance and disease, as well as a lot of pictures of different fish species.

Aquarium Frontiers Article Index - Index of hyperlinks to articles that have appeared in the on-line magazine, Aquarium Frontiers.