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ReefBase Reef Quiz

Play the ReefBase Reefing Quiz!

20 Questions from easy to not-so-easy. Have fun & good luck!

Example Question: You'll most likely find Santoprene in:


ReefBase is a Marine Fish keeping & Coral Reef Aquarist Community Forum based in the UK. Join ReefBase for help & advice or to contribute your own knowledge & experience of keeping a Marine Coral Reef Aquarium.

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

Last post by Gav
in Re: BACK!..... AFTER A 25 YEARS


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

Last post by parkerthomas
in Re: Interesting fish suggestions for a nano

Members Tanks

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

Last post by Shain Hunton
in Re: SHAINS REEF. Fluval profile 1200.

Tank of the month

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

Last post by Marty
in Re: TOTM September 2016 - voting

General Reef Keeping

General Reef Discussions

General non-specialised reefkeeping questions & discussions.

Last post by Mike
in Re: TMC

Beginners Questions

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

Last post by Russell
in Re: The Mist (not a Stephen King flick) aka The Hazy Bac...


All reef chemistry related posts should go in here.

Last post by ajm83
in Re: Low dKH - is it a problem?

Reefing News

Post links or information on any related reefing news.

Last post by Asco1104
in Re: Klir filter , new adjustable auto filter roll

Stunning Reef Tanks

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.

Last post by Carol
in Re: David Saxby reef


General competitions on member chosen subjects.

Last post by HK_Fuey
in Xmas photoshop challenge


Reefbase ID database

A database of common living things found in our reef tanks

Last post by dozey
in Re: [BAD] Xanthid Crab 🦀

ID needed

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

Last post by scruffy_77
in Re: Weird worm thingy??

Marine Fish

General Marine Fish

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

Last post by Gav
in Re: Royal Grammer Suicide

Marine Fish Diseases

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.

Last post by kirsty
in Re: Is this ich?

Clownfish & Damselfish

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

Last post by Rliddle
in Re: Mixed clowns

Tangs / Surgeonfish

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

Last post by damienpbuckley
in Re: Sulky Yellow Tang

Angelfish (Large & Dwarf)

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

Last post by Marty
in Re: Emporer anglefish


General Corals

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

Last post by kirsty
in Re: What's damaging my corals?????

Soft Corals

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

Last post by HK_Fuey
in Re: Buying online

LPS Corals

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

Last post by Kelf
in Re: Damaged acan

SPS Corals

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

Last post by fr499y
in Re: Birdsnest,very easy to keep and frag

Azooxanthellate / Non-Photosynthetic Corals

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

Last post by fr499y
in Re: Whats happening to my sun coral?


Marine Invertebrates

A board for marine reef invertebrates.

Last post by HK_Fuey
in Re: Finally Watched Halloween Hermit changing shells

Marine Molluscs

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

Last post by Carol
in Re: Living Dangerously

Marine Crustaceans

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

Last post by rusty_uk
in Re: Shrimp molt- not a dead shrimp.

Marine Hardware


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

Last post by fr499y
in Re: Fluval Aquasky for refugium and chaeto growth.

Pumps and powerheads

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

Last post by fishface
in Re: recommendation powerhead/s


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

Last post by Gav
in Re: Doser tube termination


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

Last post by HK_Fuey
in Re: 200 watt titanium heater


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

Last post by fishface
in Re: Ocean free hydra stream and internal depurator

Reef Photography


Show off your pictures of your reef.

Last post by hixy
in Re: some pics of tank today

Photography Advice & Tips

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.

Last post by Jessica
in Re: What camera to buy?


For sale

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

Last post by sumo2001
in Re: Downsizing tank - relocating larger stock

Swap Shop

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

Last post by fishface
in Re: Dead live rock


A request board for marine fish, corals or equipment.

Last post by scotsco
in Dead or live rock (west mids/ South staffs)

Reef Keeping Suppliers

Become a Supplier

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.

Last post by Mike
in Re: iQuatics Carbon


Reefloat Auto Aquarium Products

Last post by reefloat
in gauging interest

UK Marine Lighting

The UK's Marine LED lighting specialists. Providing quality LED lighting to suit all budgets & aquariums.

Last post by ukmarinelighting
in Evergrow LED Lighting sale now on at UK Marine Lighting

Reef Perfect

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

Last post by Mike
in Re: Hows it going ReefPerfect?


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.

Last post by fizzy
in Re: fish display


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.

Last post by T-Bone Tyrone
in Re: Holiday

RO World

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

Last post by Marty
in Re: Some advice please


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!

Last post by fishmansfrags


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

Last post by HK_Fuey
in Re: Live Food Discount for ReefBase Forum Subscribers


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.

Last post by marinefarm
in Evergrow D2120 sale

Aquarium Plumbing Ltd

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.

Last post by Mike
in Re: Welcome to Aquarium Plumbing Ltd - our newest suppli...


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

Last post by Colombo
in New Marine Reef Test Lab from Colombo


Cutthroat Corals are a mail order company that imports corals from all over the world. We strive to bring you a mixture of LPS, SPS and soft corals of all grades.

Last post by Steve's Marines
in Re: Welcome to our newest supplier Cutthroatcorals

Reefing Tools & Articles


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

Last post by T-Bone Tyrone
in Re: How to wire an STC1000 temperature controller with 2...


A board for polls to appear on homepage

Last post by T-Bone Tyrone
in Re: How often do you feed?


Dosing calculators, tank size calculators, etc.

Last post by Carol
in Re: Aquatic log


Useful articles on the reefkeeping hobby.

Last post by HK_Fuey

ReefBase - Info Centre

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Recent Topics

SHAINS REEF. Fluval profile 1200. by Shain Hunton

Downsizing tank - relocating larger stock by sumo2001

Klir filter , new adjustable auto filter roll by Asco1104

gauging interest by reefloat

SnowAddicts Redsea Max Nano by SnowAddict

New damsel fish cares for offspring like a cichlid by Gav

BACK!..... AFTER A 25 YEARS by Gav

1000 yr old Coral stolen from gulf island by Mike

do you have a holiday due? by reefloat

Gav's Aqua Oak by Gav

What else do we need in here? by dozey

Royal Grammer Suicide by Gav

Dead or live rock (west mids/ South staffs) by scotsco

Whats happening to my sun coral? by fr499y

Pufferfish and humans share the same genes for teeth by HK_Fuey

Tims first and last upgrade by Asco1104

Buying online by HK_Fuey

Fr499y's 4 footer mixed reef - Now 3 foot! by fr499y

Hi peeps, newbie alert! by reefloat

ady,s 52x48x24 upgrade by fishface

The Mist (not a Stephen King flick) aka The Hazy Bacterial Bloom? by Russell

Steve's LPS Reef by fishface

Marty's Reef Tank by Steve's Marines

Damaged acan by Kelf

FIRST TANK cycling - ID? by MattJ

Black tentacles on torch by dozey

Dead live rock by fishface

Doser tube termination by Gav

contact by Mike

Tank conversion - advice needed please by HK_Fuey

Powder brown tang by fishface

How to get good picture of corals?? by amber3cat

Aquatronica PC and PH interfaces needed please by Crawley_Chris

Protein From Mussel Glue Used To Help Prevent Scarring by HK_Fuey

GlennF's DSR tank by glennf

Reef Keeping News

Protein From Mussel Glue Used To Help Prevent Scarring May 17, 2017 8:57:08 pm by HK_Fuey
There has been a lot of interest, but little progress, in helping wounds heal without scar tissue. One of the main issues to overcome is the abnormal reorganization of
Read More
Vinegar offers hope in Great Barrier Reef starfish battle Apr 27, 2017 9:04:54 am by Gav
Vinegar offers hope in Great Barrier Reef starfish battle
Read More
Clouds could save barrier reef Apr 25, 2017 6:47:19 pm by Gav
Read More
Venomous fang blenny fish could hold key to painkillers Apr 2, 2017 10:50:02 pm by Gav
Venomous fang blenny fish could hold key to painkillers
Read More