Got an emergency and need a quick answer? Post here! For algae answers, look on the Algae board.

Got algae taking over your aquarium sand or glass? Look here for solutions!

New member? Introduce yourself here and tell us a little about you and your aquarium. Introductions only please. Ask specific questions on the appropriate boards.

Have no idea what that thing is in your aquarium? Take a pic and post it here!

Got a fish tank that you are proud of? Post some aquarium pics with descriptions here so we can check it out! Journals welcome!

General topics about reef aquariums.

A place for the new aquarium hobbyist to ask questions. For algae answers, look on the Algae board.

Got a cool DIY project for your reef aquarium? Share it here!

For fish food recipes, questions about fish foods, feeding techniques, coral foods, how much to feed your fish, etc. Food questions only please.

Great books & magazines related to fish, coral, aquariums, etc..

Click here to go to the off topic boards such as the Bucket, Synergy, Environmental and more!

IRC - Indiana Reefers Club. IRC is based in South Central Indiana and meets once a month.

A reef club near Joliet, Illinois.

Reno Area Reef Society

All about tropical fish and saltwater fish suitable for reef tanks.

Sub-Forums: Fish of the Month

Hard corals, soft corals, mushrooms, polyps, etc.

Sub-Forums: Coral of the Month

About the Inverts - Shrimp, crabs, pods, tunicates, bryzoans, and anemones (fit better here than in corals), etc.

Not for beginners, but clams are excellent natural water filters.

Live rock is the main biological filter of a reef aquarium.

All about sand for your aquarium. DSB, barebottom, plenum, southdown, live sand, aragonite, crushed coral, etc.

Discussions related to specific fish tanks and aquarium manufacturers.

All about protein skimmers filters for aquariums.

All about reef lighting for aquariums. Metal halide, VHO, T5, power compact, flourescent, etc.

Wet/dry filters, canisters, pumps, wave makers, UV, etc.

All the latest about refugiums, algae turf scrubbers and ecosystems filters for your aquarium.

Does your aquarium have the right water chemistry - the right amount of calcium, alkalinity, iodine, magnesium, etc.?

Boards for both fish and coral disease identification. Ich, brown jelly, etc.. Don't know? This is the place.

Sub-Forums: Fish Diseases, Coral Diseases

How to keep your coral healthy and happy!

All things related to salt mixes for aquariums. Preparations, observations, etc..

A forum for fish breeders to share successful breeding techniques and info about raising their fry. Breeding clownfish and how to breed Bangaii Cardinals. Livebearers, substrate spawners, mouthbrooders, etc.

A frags forum for sharing coral propagation tips and techniques. The evolution of coral fragging has been a blessing for the reef aquarium industry and the environment as a whole. Aquaculturing corals is fun. Get started today!

Sub-Forums: Trade Frags

About freshwater fish and aquariums for people who love freshwater tanks too!

Sub-Forums: General Freshwater Information, Goldfish, Cichlids, Freshwater Fish, Freshwater Fish Tanks, The Planted Tank, Fish Filters, Fish Disease, Turtles

Aquarium products that catch our eye!

If you have learned a thing or two taking care of your aquarium, here is your chance to share! Please submit reef aquarium related articles about your experiences - such as reef aquarium how to's - how to setup a reef tank, coral and fish ids, etc. Aquarium article submissions are moderated and should be at least 1 detailed page to qualify. You will receive karma, a contributor badge and instant fame for your work!

News and information about this forum. Questions or suggestions welcome.

Sub-Forums: 3reef Site Polls

Make a video and enter to win a Seachem Pinnacle 50 GPD RO Filter! Vote for your favorite video here.

It is time to vote for your favorite video! The winner will receive a Red Sea C-Skim 1200 Protein Skimmer!

Vote for your favorite video here!

It is time for another over-the-top 3reef Video contest! Win a Seachem Pinnacle+ 100 GPD RO/DI Filter! Submit your video here. Deadline extended to May 19th!

All you need is a video camera, camera phone or web cam, a reef tank and a moment to become a 3reef member and you can win a Tunze stream pump!

This is archive of old auctions. Use the new classifieds section to post auctions.

This is an archive of reviews from the old site. Please use new reviews section for posting.

An archive of the 2nd generation of 3reef product reviews.

Off topic posts - Members only. Posts don't count here. No politics or endless game threads please.

All the depressing articles about the world in one place!

Moderators Only. Posts don't count here.

An industry leader in innovative high quality water purification systems

The Aquaripure nitrate filter, also know as a denitrator, is a comprehensive biological filter. It uses beneficial bacteria to break down invisible organic matter and nitrates completely into Nitrogen gas which then escapes into the atmosphere. The Aquaripure achieves this in an extremely safe and controlled environment and after the water from the Aquaripure is aerated there is nothing left but pure, clean, crystal clear water.

Big Al's Online - The Largest Online Aquatic Superstore with the Lowest Prices Guaranteed on Thousands of Premium Brand Aquarium Products Everyday

All biOrb aquariums utilize our unique five-stage system to improve and maintain water quality and clarity. The optimized water is better for the fish and stays crystal clear for longer. The five-stages of water optimization are biological, mechanical and chemical filtration along with water stabilizers and 100% oxygenation.

Chief Reef is a manufacturer and full supplier of coral propagation mounts, tools, adhesives, and other innovative propagation solutions. We believe coral propagation is essential to preserving our ocean’s reef habitats, and it is our mission to provide high quality products at affordable prices.

Coral Morphologic is a marine biologist-owned and operated company that serves to connect discerning, conscientious aquarists with the highest quality Floridian corallimorphs, ricordea, and zoanthids. As marine-life collectors, we are able to hand-select the most unique, colorful, and healthy specimens from local waters. As serious reef aquarists, we utilize a keen aesthetic sense in our selection process.

Makers of aquarium overflows, protein skimmers and more.

Marine Aquarium Expo (MAX) is the largest marine aquarium event in North America. Now in its third year, MAX will draw enthusiasts from all over the nation to the OC Fair & Event Center in Costa Mesa, California on April 10 and 11, 2010. Anyone with a passion, intrigue, or mere interest in the marine aquarium hobby is welcome to attend from 10:00 AM to 6:00 PM on Saturday and Sunday. Friday, April 9 will be open for exhibitor setup only. The entrance fee for each day is $15 for adults, $10 for seniors, and FREE for children under 12 years of age.

For over ten years Red Sea has been a leader in the development and introduction of new and innovative technologies and products for the serious aquarium hobbyist. Inspired by the natural beauty of the exotic Red Sea our team of engineers, chemists, biologists and other professionals work diligently to bring you state-of-the-art products to enhance your enjoyment of this wonderful hobby.

At Reef Cleaners we stock the lowest priced saltwater aquarium algae and diatom eaters on the Internet to keep your tank free of nuisance algae. We also stock the largest selection of macro algae in the United States to help you control nutrients in your tank with efficiency and style. Whether you are a wholesaler, or a hobbyist, we can fill your reef cleaning needs.

Reef Empire is a professional aquarium company specializing in custom reef aquariums and live coral. We build and maintain these beautiful living works of art. We also sell exotic saltwater fish and coral. Our main goal is to provide you with the aquarium of your dreams. We are happy to help you with any aquarium needs you may have. Reef Empire has the expertise, knowledge, and attention to detail that sets us apart from other aquarium companies. Let Reef Empire show you the difference.

Welcome to the Salty Underground, your source for hungry, aiptasia eating Berghia nudibranchs and other saltwater specialties. Aiptasia anemones invade saltwater tanks and kill corals. Berghia nudibranchs eat only one thing: the dreaded aiptasia anemone. That's all Berghia eat... nothing else... not one other thing. And, they are completely reef safe.

Seachem Laboratories is a manufacturer of innovative aquarium products for a variety of aquatic environments including freshwater, saltwater, reefs, and ponds. Seachem's products include buffers, conditioners, filtration media, medications, test kits, and gravels.

ShipYourAquatics.com is an online UPS shipping interface that allows you to book shipments at 30% off. Book your shipment online, print the shipping label at your computer, and schedule a driver pickup at your home or office. Next Day Air, 2nd Day, 3 Day Select or Ground, and all at 30% off the retail rate. We also offer shipping supplies to meet all of your aquatic shipping needs!

SpectraPure® proudly presents the finest water purification equipment available. As the technology leader, we set the standard and constantly push it to new heights. Thousands of satisfied customers include marine research centers, universities, public aquariums, and government agencies. SpectraPure® has years of experience designing specialized laboratory and industrial high-purity water systems. SpectraPure® Systems are produced in a dedicated manufacturing facility using only the highest quality components. Years of research and experience are reflected in the engineering of SpectraPure® Water Purification Systems. We understand the complex factors that affect Reverse Osmosis and Deionization System performance and reliability.

The USA importer and distributor of SWC Skimmers from Canada.

Welcome to TB Aquatics. We are a different kind of reef/marine livestock store. Most everything we sell is what you see is what you get. Each premium quality animal is hand selected by our owner for its health and beauty. We try to offer a wide variety of reef friendly livestock.

Welcome to Triton’s Garden, your source for quality aquacultured coral. Triton’s Garden specializes in limited edition collector corals but we also have coral to meet every budget. We know that buying coral from an online store can be a cause of concern. That is why we pledge to give you the best support and highest quality coral possible.

TropicalTankSupply.com is a Coral, Fish, Invertebrate, and Aquarium Supply seller based on the West Coast, in Northern Los Angeles County. If you're looking for something that is not available on our website, just let us know! We work with a large network of wholesalers and importers and we can find nearly anything you're looking for. We offer local pickups as well as nationwide shipping at great rates! If you have any questions, please call us at 661-750-AQUA (2782).

Our years as collectors of rare corals and exotic fish combined with hands-on knowledge as hobbyists will provide you with the answers to any of your questions or concerns regarding all your saltwater needs. We will only provide the highest quality products and services at reasonable prices. Each of your visits to Underwater World will be a new and exciting experience.

We are an online Corals & Fishes store. We are family owned and operated. We are based in Sylmar , California which is located in San Fernando Valley. We are opened to appointments only if anyone wants to come to our facility.

Worldwidecorals.com, your one stop shop for live corals and frags. Located in Orlando, FL we specialize in finding and aquaculturing the most sought after corals in the world. Please browse around our site and take a look at some of our exotic livestock. We are constantly updating the corals in our database so be sure to check back.

ZeroEdge™ Aquariums are overflowing, aquatic works of art that can be designed to fit any interior. A ZeroEdge Aquarium adds ambience to any setting through its soft, tranquil sound and remarkable visual display. Customized for your decorating needs, a ZeroEdge Aquarium can be designed in any size or shape and can be positioned anywhere.