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General Aquarium Discussion We're talking about aquariums, reef tanks, reef chemistry, do it yourself projects, aquarium equipment, and much more.

Reef Aquarium Discussion

Discuss all saltwater and reef aquarium related topics here. Have a question or general aquaria thought? Share it here.
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69.5K
Messages
970K
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69.5K
Messages
970K

New to Saltwater & Reef Aquariums? Post Here

If you're new to the Saltwater Hobby and have questions please post them here. So you finally decided to take the plunge. The only dumb question is the one you don't ask!
Threads
30.5K
Messages
331.7K
Threads
30.5K
Messages
331.7K

Reef Chemistry by Randy Holmes-Farley

Need some help with the chemistry aspect of your aquarium or have some knowledge you would like to share? Please start a new topic. This forum is moderated by Randy Holmes-Farley.
Threads
16.3K
Messages
215.8K
Threads
16.3K
Messages
215.8K

Aquarium Nutrition

Discuss the nutrition aspects of feeding fish, coral and inverts to keep them healthy and thriving.
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1.5K
Messages
16.6K
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1.5K
Messages
16.6K

Hitchhiker & Critter ID

Need help figuring out what something is? Post a thread with a photo! ID your hitchhikers and critters here!
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13.9K
Messages
108K
Threads
13.9K
Messages
108K

Aquascape Discussion

Aquascaping is as much an art as it is a science. Here's a forum for discussing all things related to aquascapes. Got tips to share? Post them here! Need some help? We're here to help!
Threads
1.7K
Messages
22.6K
Threads
1.7K
Messages
22.6K

Do It Yourself (DIY)

DIY projects can save money and also be fun and interesting. Share your projects and learn from many others here.
Threads
8.8K
Messages
137K
Threads
8.8K
Messages
137K

Meet & Greet Forum

New to R2R? Introduce yourself here and tell us a little about yourself and your tank!
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12.8K
Messages
293.5K
Threads
12.8K
Messages
293.5K

Lounge

This forum is for off topic discussions.
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8.8K
Messages
189K
Threads
8.8K
Messages
189K

Equipment Discussion for Saltwater and Reef Aquari Equipment, Lighting, Hardware, Aquarium Filtration, Controllers, Skimmers, Powerheads, etc.

General Equipment, Hardware, Filtration

If you have aquarium equipment questions or ideas this is the place to do it. Discuss aquarium pumps, filters, skimmers, refugiums, reactors, and much more.
Threads
39.4K
Messages
386.2K
Threads
39.4K
Messages
386.2K

Aquarium Lighting By Dana Riddle

Discuss all topics pertaining to aquarium lighting. LED, Metal Halide, T5 etc.
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12.1K
Messages
138K
Threads
12.1K
Messages
138K

Aquarium Controllers

This forum is dedicated to all Aquarium Controller Discussion. Share your experience as well as learn from others.
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3.8K
Messages
45.4K
Threads
3.8K
Messages
45.4K

Saltwater Aquarium Fish Forum This is the place to talk about saltwater fish, anemones, seahorses, pipefish, fish breeding, and more!

Fish Discussion

Discuss all topics related to salt water aquarium fish. Angelfish, Anthias, Basslets, Blennies, Butterflyfish, Clownfish, Damsels, Dottybacks, Eels, Gobies, Jawfish, Lionfish, Pipefish, Puffers, Rays, Seahorse, Tangs, Triggerfish, Wrasse, and more.
Threads
20.5K
Messages
263.2K
Threads
20.5K
Messages
263.2K
  • pcon

Fish Disease Treatment and Diagnosis

A forum for discussing treatment and diagnosing saltwater reef fish.
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13.3K
Messages
192.9K
Threads
13.3K
Messages
192.9K

Fish Breeding Forum

This is the place to discuss and share about saltwater fish breeding. Got a question or want to talk about your experience? Please join in!
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1.1K
Messages
12.7K
Threads
1.1K
Messages
12.7K

Anemone & Clownfish Discussion

Discuss Ocellaris, Percula, Maroon, Tomato, Cinnamon, Pink Skunk, Clarkii, as well as designer clownfish such as Picasso, Snowcasso, Onyx, Platinum, Snowflake, etc. Also discuss anemones such as Bulb Tip, Long Tentacle, Ritteri, Sebae, Carpet, Tube, and more.
Threads
9.3K
Messages
105.2K
Threads
9.3K
Messages
105.2K

Predatory Fish Discussion

This forum is for the discussion of predatory fish.
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842
Messages
12.1K
Threads
842
Messages
12.1K

Seahorse/Pipefish

Seahorse and Pipefish Discussion.
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770
Messages
11.2K
Threads
770
Messages
11.2K

Coral Discussion Whether you like the colored sticks or the soft flowing coral this is the place! Talk about Sps, Lps, Zoas, Soft Coral, Mushrooms and more.

General SPS Discussion

Discuss and post your questions about all SPS or Small Polyped Stony corals such as Acropora, Montipora, Stylophora, and all other hard corals.
Threads
15.1K
Messages
241.2K
Threads
15.1K
Messages
241.2K

General LPS Discussion

Discuss and post your questions about all LPS or Large Polyped Stony corals such as Acans, Elegance, Doughnut, Candy Cane, Brains, Button, Hammers, Torch, Plate, and all other LPS hard corals.
Threads
15.4K
Messages
169.9K
Threads
15.4K
Messages
169.9K

Soft Coral Discussion

Discuss and post your questions about all Soft corals such as Toadstool, Kenya Tree, Mushrooms, Cabbage, Spaghetti, and all other soft corals.
Threads
6K
Messages
59.6K
Threads
6K
Messages
59.6K

Zoa Discussion (CLUB ZOA)

Discuss and post your questions about all Zoas, Zoanthid or Colonial Polyp corals and Palys. (Rastas, Candy Apple Reds, Red Hornets, Dart Mauls, Purple Hornets, Nightmares, PPE, Sunny D, Armageddons, Mohawks, and more)
Threads
14K
Messages
159.9K
Threads
14K
Messages
159.9K

Propagation, Packing, and Shipping Discussion

Talk about propagation techniques, show of your prop setups, as well as packing tutorials and shipping advice.
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1.5K
Messages
17.8K
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1.5K
Messages
17.8K

Algae Discussion We're talking about all kinds of algae here! If you love to grow macros, this is the place! Got a problem with nuisance algae? Post up here!

Nuisance Algae (including bacteria)

Need help with nuisance algae, cyanobacteria, or dinoflagellates? Maybe you just need an ID of what you have in your tank? This is the section for you.
Threads
6.6K
Messages
86.7K
Threads
6.6K
Messages
86.7K

Macroalgae (all types of desirable algae)

This is the forum for discussing all types of macros (chaeto, caulerpa, gracilaria, halimeda, or any other kind of macro you can think of)! Need tips for growing or troubleshooting desirable algae? Wanna show off your macroalgae display or refugium? Post here!
Threads
929
Messages
8.6K
Threads
929
Messages
8.6K

Saltwater Invert Discussion We talk about all the cool invert critters here! Crabs, Clams, Octopus, Snails, we got it all!

Clams

Talk about Tridacnid Clams and other Mollusks such as Crocea, Derasa, Maxima, Squamosa, and more.
Threads
1.7K
Messages
24K
Threads
1.7K
Messages
24K

General Invert Forum

This is the place to ask questions and to discuss all saltwater marine inverts. Discuss Shrimp, Snails, Starfish, Crabs, Cucumbers, Sea Slugs, Lobsters, Fan Worms, Sponges, Urchins, and more.
Threads
7.2K
Messages
61.4K
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7.2K
Messages
61.4K

Mantis Shrimp

A place to talk about everything Mantis Shrimp
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214
Messages
2.8K
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214
Messages
2.8K

Member's Aquarium Discussion Please share your aquarium set ups here! Whether you have nano aquarium, mid-size box of glass, or an indoor swimming pool for fish this is the place to be.

Member Tanks

Show off your tank and document your progress.
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12.7K
Messages
562.3K
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12.7K
Messages
562.3K

Member Frag Tanks & Frags Systems

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66
Messages
783
Threads
66
Messages
783

Large Aquariums 180g - 399g

A forum for people interested in keeping large aquariums. This forum is dedicated to water volumes of 180 gallons to 399 gallons. Anything more is a monster tank!
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1.9K
Messages
110.8K
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1.9K
Messages
110.8K

Monster Tanks 400g+

A forum for people interested in keeping the largest aquariums. This forum is dedicated to water volumes of 400 gallons and larger.
Threads
280
Messages
35.9K
Threads
280
Messages
35.9K

Nano Reefs

Got a nano? Well here is a place for all you nano lovers to hang!
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3.6K
Messages
70.6K
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3.6K
Messages
70.6K

All In One Aquariums (AIO)

Discuss All In One aquariums like Red Sea, JBJ, Innovative Marine, Coralife, etc. AIO aquariums come with most everything you need to set up a saltwater aquarium in one package.
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2.2K
Messages
37.6K
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2.2K
Messages
37.6K

Cube Aquariums

For all you cube keepers!
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901
Messages
29.8K
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901
Messages
29.8K

Aquarium Photography, Video, and more discussion. This is the place to share and drool over some of the best aquarium videos and pictures in the hobby. We're also talking about the TV series TANKED!

Photography Forum

This forum is for photography discussions, talk about equipment, techniques, or just show off.
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4.5K
Messages
57K
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4.5K
Messages
57K

Videography Forum

This forum is for reef video discussions, talk about equipment, techniques, or just show off.
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830
Messages
5.9K
Threads
830
Messages
5.9K

Buy, Sell, Trade Coral, Fish, and Equipment If you're looking for a new fish, sweet piece of coral, or fancy gadget this is the place. Buy, Sell, and Trade here!

Sponsor Livestock & Drygood Sales

Check this forum out for direct sales from our Reef2Reef Sponsors.
Threads
589
Messages
2.7K
Threads
589
Messages
2.7K

Selling Forum (livestock)

This forum is for selling coral, fish, and anything else that lives in our tanks.
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20.5K
Messages
200.1K
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20.5K
Messages
200.1K

Selling Forum (dry goods)

Please use this forum for any hardware or dry good sales.
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33.7K
Messages
250.9K
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33.7K
Messages
250.9K

3D Printed & Handmade Aquarium Items

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139
Messages
2K
Threads
139
Messages
2K

Trading Forum (livestock)

This forum is for trading coral, fish, and anything else that lives in our tanks.
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2K
Messages
13K
Threads
2K
Messages
13K

Trading Forum (dry goods)

Please use this forum for trading any hardware or dry goods.
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2.2K
Messages
8.9K
Threads
2.2K
Messages
8.9K

Wanted To Buy (livestock and dry goods)

Post here if you are looking to buy certain corals or hardware and dry goods.
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18.3K
Messages
60.1K
Threads
18.3K
Messages
60.1K

How to Price It?

Not sure how to price something you're thinking about selling? Here's a place to get some opinions.
Threads
391
Messages
1.4K
Threads
391
Messages
1.4K

Group Buys

Post here if you are setting up group buy or are interested in participating in a group buy.
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212
Messages
11.2K
Threads
212
Messages
11.2K

Seller / Trader Feedback

This forum is for leaving feedback from trades or sales with other members.
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2.5K
Messages
8K
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2.5K
Messages
8K

Vendor Feedback

Lets hear your feedback from any reef-related vendors.
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4K
Messages
17K
Threads
4K
Messages
17K

R2R Forum Interest Everything that pertains to the R2R community and site is here. Forum feedback, giveaways, contest, frag swaps and more!

Announcements

Here is the place to post all announcements for aquarium society meetings, reef club activities, frag trades and other local events. This is also the place for all R2R forum info.
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1.9K
Messages
49.1K
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1.9K
Messages
49.1K

Forum News / Feedback

Lets hear your comments and suggestions for the website.
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1.7K
Messages
18.3K
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1.7K
Messages
18.3K

R2R Giveaway and Contest Forum

This is where we will announce all giveaways and contest!
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353
Messages
135.3K
Threads
353
Messages
135.3K

Reef Aquarium Spotlight

Aquarium Spotlights (Past and Present)
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58
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2.7K
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58
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2.7K

R2R Spotlight Series

Here we spotlight coral, fish, shipping procedures and more.
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47
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1K
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47
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R2R Approved Fundraisers

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13
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218
Threads
13
Messages
218

Reef Trade Shows & Swaps Saltwater Reef Aquarium Trade Shows and Frag Swaps

Local Reef Club Discussion If you would like to start a reef club forum for your area please select the contact us link at the bottom of the page and submit your request.

Local Reef Club Discussion

Looking for some locals to share frags and info with? This is the place! Find a local club that meets in your area! If you want to add your club just contact us.
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25.6K
Messages
256.1K
Threads
25.6K
Messages
256.1K

Sponsors Check out all of our most awesome sponsors! These reputable vendors have it all! Coral, saltwater fish, equipment, and more, look here first!

Algae Barn

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154
Messages
2.6K
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154
Messages
2.6K

All Delight Corals

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88
Messages
1.3K
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88
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1.3K

AquaFX

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25
Messages
195
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25
Messages
195

Aqua Illumination

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123
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1.1K
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123
Messages
1.1K

AquaNerd

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250
Messages
705
Threads
250
Messages
705

Aquarocks

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8
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21
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8
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21

Aquarium Specialty

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422
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2.7K
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422
Messages
2.7K

Aqua SD

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1.7K
Messages
52.7K
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1.7K
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52.7K

Aquatic Life

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81
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3K
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81
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3K

A Reef Creation

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179
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17.2K
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179
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ArtFully Acrylic

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53
Messages
2.2K
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53
Messages
2.2K

ATI Aquaristik

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303
Messages
4.7K
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303
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4.7K

Austin Aqua Farms

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225
Messages
1.7K
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225
Messages
1.7K

AVAST Marine

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136
Messages
1.9K
Threads
136
Messages
1.9K

Battlecorals

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660
Messages
35.2K
Threads
660
Messages
35.2K

Buckeye Hydro

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13
Messages
100
Threads
13
Messages
100

Bulk Reef Supply

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1.3K
Messages
20K
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1.3K
Messages
20K

BSA Corals

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375
Messages
3.7K
Threads
375
Messages
3.7K

Cali Kid Corals

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61
Messages
5.2K
Threads
61
Messages
5.2K

Champion Lighting & Supply

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19
Messages
107
Threads
19
Messages
107

Chaos Aquaculture

Threads
141
Messages
2K
Threads
141
Messages
2K

Chemi-pure

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5
Messages
100
Threads
5
Messages
100

Clearwater Scrubbers

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9
Messages
68
Threads
9
Messages
68

CoralFish12g

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29
Messages
255
Threads
29
Messages
255

Coral Frenzy

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23
Messages
265
Threads
23
Messages
265

Corals.com

Threads
518
Messages
1.8K
Threads
518
Messages
1.8K

Cultivated Reef

Threads
71
Messages
892
Threads
71
Messages
892

Custom Reef Creations

Threads
6
Messages
34
Threads
6
Messages
34

CWT Aquatics

Threads
0
Messages
0
Threads
0
Messages
0
None

D-D The Aquarium Solution

Threads
21
Messages
95
Threads
21
Messages
95

Deltec USA

Threads
5
Messages
73
Threads
5
Messages
73

DSR USA

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2
Messages
58
Threads
2
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58

EcoTech Marine

Threads
704
Messages
8.1K
Threads
704
Messages
8.1K

Elos America

Threads
58
Messages
277
Threads
58
Messages
277

Endeavour Aquatics

Threads
10
Messages
51
Threads
10
Messages
51

eXact iDip

Threads
17
Messages
127
Threads
17
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127

Fauna Marin

Threads
234
Messages
2K
Threads
234
Messages
2K

Fishnreef

Threads
380
Messages
1.5K
Threads
380
Messages
1.5K

Galactic Coral

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3
Messages
1.8K
Threads
3
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1.8K

Geo's Reef

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62
Messages
579
Threads
62
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579

GHL Advanced Technology

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1.2K
Messages
15.8K
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1.2K
Messages
15.8K

Hanna Instruments

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116
Messages
1.1K
Threads
116
Messages
1.1K

Innovative Marine

Threads
7
Messages
813
Threads
7
Messages
813

Jason Fox Signature Corals

Threads
262
Messages
36.5K
Threads
262
Messages
36.5K

Joe Knows Reefs

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300
Messages
46.1K
Threads
300
Messages
46.1K

Joker Corals

Threads
2
Messages
68
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2
Messages
68
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2
Messages
29

Kessil

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55
Messages
760
Threads
55
Messages
760

Kolar Labs

Threads
0
Messages
0
Threads
0
Messages
0
None

Legendary Corals

Threads
194
Messages
3.8K
Threads
194
Messages
3.8K

LiveAquaria

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166
Messages
993
Threads
166
Messages
993

Living Reef Orlando

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122
Messages
2.7K
Threads
122
Messages
2.7K

Love the Reef

Threads
115
Messages
908
Threads
115
Messages
908

LRS Frenzy Foods

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216
Messages
2.6K
Threads
216
Messages
2.6K

Marco Rocks

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28
Messages
191
Threads
28
Messages
191

Marine Depot

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1.8K
Messages
8.7K
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1.8K
Messages
8.7K
  • adobo

Mode Aquariums

Threads
8
Messages
106
Threads
8
Messages
106

Monterey Bay Coral

Threads
120
Messages
667
Threads
120
Messages
667

MR Reefs

Threads
15
Messages
122
Threads
15
Messages
122

Neptune Systems

Threads
875
Messages
10.7K
Threads
875
Messages
10.7K

Noopsyche

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110
Messages
2.1K
Threads
110
Messages
2.1K

NY Aquatic

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504
Messages
4.8K
Threads
504
Messages
4.8K

NYOS® AQUATICS

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23
Messages
115
Threads
23
Messages
115

Oceans Garden Aquaculture

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63
Messages
279
Threads
63
Messages
279

Octo Aquatics

Threads
43
Messages
989
Threads
43
Messages
989

Omega Sea

Threads
7
Messages
25
Threads
7
Messages
25

Orphek

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123
Messages
2.5K
Threads
123
Messages
2.5K

Pacific East Aquaculture

Threads
813
Messages
6.8K
Threads
813
Messages
6.8K

Pieces of the Ocean

Threads
801
Messages
8.9K
Threads
801
Messages
8.9K

Polyplab

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41
Messages
320
Threads
41
Messages
320

Premium Aquatics

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738
Messages
3.2K
Threads
738
Messages
3.2K

Punisher Corals

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6
Messages
122
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6
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122

Quarantined Fish

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64
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64
  • MW319

Red Sea

Threads
358
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4K
Threads
358
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4K

Reefaholix

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4
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14
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4
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14

Reef Breeders

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398
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4.5K
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4.5K
  • Yevoc

Reef Builders

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2.8K
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5.9K

Reef Brite

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12
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73
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73

Reef Collective

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38
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38

Reef Edition Magazine

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32
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Reef Kinetics

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Reef Nutrition

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55
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1.1K

Reef Raft USA

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33.1K

@ReefWeeds: Reef-Inspired Art

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17
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771
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17
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771

SaltwaterAquarium.com

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304
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868
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304
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868

Santa Monica Filtration

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28
Messages
760
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28
Messages
760

Ship Your Aquatics

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2
Messages
52
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2
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52

Sicce

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4
Messages
33
Threads
4
Messages
33

Simplicity Aquatics

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19
Messages
224
Threads
19
Messages
224

Soggy Tees

Threads
43
Messages
623
Threads
43
Messages
623

SpectraPure

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16
Messages
123
Threads
16
Messages
123

Supreme Reefs

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124
Messages
983
Threads
124
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983

TCK Corals

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485
Messages
20.7K
Threads
485
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20.7K

The Alternative Reef

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254
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4.5K
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254
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4.5K

Top Shelf Aquatics

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243
Messages
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30.2K

Triton Applied Reef Bioscience

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924
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11.6K
Threads
924
Messages
11.6K

Tropic Marin

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16
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141
Threads
16
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141
  • saf1

TSM Aquatics

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29
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273
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29
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273

Tunze

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433
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3.7K
Threads
433
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3.7K

Turbo's Aquatics

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28
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1.2K
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1.2K

Ultimate Corals

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3.8K
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Ultra Rainbow Corals

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1.7K
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Underwater Creations, Inc.

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11
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1.9K
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Vivid Aquariums

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122
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1.4K
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TAP WATER FOR YOUR REEF TANK

  • I do not use tap water

    Votes: 560 67.4%
  • I use tap water

    Votes: 59 7.1%
  • I did use tap water in the past before I had an RO unit

    Votes: 127 15.3%
  • I use tap sometimes and ro/di sometimes

    Votes: 15 1.8%
  • I would use tap water in an emergency

    Votes: 90 10.8%
  • my tap water would kill my reef tank

    Votes: 83 10.0%
  • Other (please explain)

    Votes: 14 1.7%

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