If you're new to ReefBase, come and introduce yourself.

General off-topic chat and discussions. Be yourself & join-in.

A general board for the discussion of freshwater fish, tanks and freshwater specific equipment, such as CO2 kits, etc.

Browse our members' tank threads, view progress and pictures, or create your own thread to track the progress of your own reef aquarium.

Monthly competitions on member's tanks. Enter pictures of your tank and / or vote on others'.

General non-specialised reefkeeping questions & discussions.

If you're new to the hobby, please ask any questions you have, rather than making the mistakes we've all made.

All reef chemistry related posts should go in here.

Post links or information on any related reefing news.

A collection of the most beautiful reef aquariums from anywhere on the net. Post links and a brief summary of what captivated you most by the tank. Inspiration for us all.

General competitions on member chosen subjects.

A database of common living things found in our reef tanks

Need help identifying something? Post a photo, video, and/or description and we'll do our best to help you out.

A general board for all Marine fish, for Marine Fish identification, and general discussion.

A board for threads related to marine fish diseases including; White Spot (Ich), Brooklynellosis (Anemonefish Disease), Marine velvet, black spot, HLLE, Fin Rot, etc. Their diagnosis and treatment.

Clownfish and other Damselfish, including Clarkii Clownfish, Common Clownfish (Nemo), Skunk Clownfish, Electric Blue Damselfish, Domino Damselfish are in this category.

Discussions regarding Tangs aka Surgeonfish. Fish such as Yellow Tangs, Regal Tangs (Dory), Naso Tangs, Clown Tangs, etc fall into this category.

For topics about Angelfish & Dwarf Angelfish. For Fish such as the Queen Angelfish, Emperor Angelfish, Coral Beauty & Flame Angel.

A general board for all Corals & Anemones, for Coral identification, and general discussion.

Soft corals. Corals without a skeleton. These include Leather Corals, Pulsing Xenia, Zoanthids, Mushrooms, etc.

Large polyp stony corals. Any corals with a calcium based skeleton, and large polyps which extend out to completely conceal the skeleton beneath.

Small polyp stony corals. More advanced corals which have calcium based skeletons and small polyps.

Azooxanthellate or non-photosynthetic corals do not require much if any light to survive. They include Gorgonians and Sun Corals.

A board for marine reef invertebrates.

Marine gastropod molluscs including; Seahares, Turbo snails, Nassarius snails, and predatory snails such as Sundial snails & some Nudibranchs.

Marine Crustaceans as in Porcelain crabs, Mithrax crabs, cleaner shrimps, blood shrimps, boxer shrimps, etc.

Discussions surrounding marine & reef lighting, Metal Halides, CFLs, T5s or LEDs.

Pumps for returns/skimmers/reactors/etc. & powerheads/wavemakers/etc. You get the idea ;-)

A board for more specialised equipment such as dosing pumps, kalkwasser stirrers, calcium reactors, etc.

Marine Hardware Do-It-Yourself. A board containing topics about building & customising your own equipment.

Discussions about Filtration, protein skimmers, uv sterilisation, ozone usage, nitrate reactors, biopellets, etc.

Show off your pictures of your reef.

If you need help getting good photos of your marine tank, fish or corals. Ask for advice here, please include camera model, as it helps to understand what features are available to you.

A board to advertise things you're giving away to fellow reefers.

A board to advertise your reefing equipment and livestock for sale.

A swap shop. A place for ReefBase members to offer frags, Corals, Zoanthids, Fish or equipment in exchange for other items.

A request board for marine fish, corals or equipment.

There's no sponsorship model on ReefBase. For members it means there's no bias towards vendors who are supporting the forum financially, so everyone is free to talk openly about products, whether they're a supplier here or not. For you it means there's no fee, and you can advertise your products or service and interact with UK Reefkeeping hobbyists.

iQuatics Online is the UK’s leading supplier of innovative aquarium lighting products.

Reef Perfect is the UK’s leading supplier of aquarium cooling and control products for private and commercial customers alike.

Fistafiltration specialise in acrylic aquarium manufacture, and filtration such as sumps and reactors. FistaFiltration has been supplying acrylic tanks and products for over 20 years.

MailOrderCorals are one of the leading suppliers of Marine Corals and Inverts in the UK. With over 4,000 Corals & Inverts ready for delivery direct to your door with our live arrival guarantee.

A UK supplier of high quality aquarium RO units. With a vast range of reverse osmosis accessories at unbeatable prices with quick delivery.

Fishmansfrags has been a market leader of UK mail order marine corals, frags and livestock since 2005 and is possibly the most popular and best priced retailer of marine corals and critters online today!

Reefphyto Ltd is a reliable source of quality Live Phytoplankton, Rotifers, Copepods (Zooplankton) all cultured and grown at our premises in the UK.

We are suppliers of marine fish, coral, inverts and tank equipment. Using the equipment we also sell helps us to understand the customers requirements in maintaining a healthy aquarium.

We specialise in UPVC aquarium plumbing and fittings. All of our aquarium plumbing is fish and invert safe and can be used in fresh or salt water systems. We supply imperial and metric systems which are compatible with Deltec, Aqua Medic and any other European equipment.

Our marine products are both high quality and user friendly and have just one goal - to produce a successful healthy marine aquarium with stunningly beautiful corals and fish

AbyssWare offer different options of fully customisable light systems and platforms in order to meet customer's detailed requirements, optimal lighting, excellent design and maximum reliability. Off-the-shelf lighting systems, custom spectrum and power, custom look and design features of lights, all features and components used are highest quality, efficiency and reliability.

Our specialty is in the propagation of live coral for saltwater aquarium enthusiasts. A reef aquarium allows us to view, in our own homes, a multitude of beautiful life forms, providing a window to an underwater world we may not otherwise see. Our Beautiful Marine Corals will help any enthusiast create the most stunning underwater worlds at affordable prices.

Coral Cultivations is a new frag farm based in Hull, East Yorkshire. We specialise in soft coral frags - including many zoo species including some rare ones, plus various soft corals, Xenias and star polyps. We specialise in offering high quality, affordable zoo and soft coral packs ideal for beginners to the hobby, as well as offering a selection of high end zoo species.

A board for how-to guides on any area of the reefkeeping hobby.

A board for polls to appear on homepage

Dosing calculators, tank size calculators, etc.

Useful articles on the reefkeeping hobby.