Identification Forum

18,878 topics in this forum

1. THE ULTIMATE ID THREAD! Before you post WHATS THIS? LOOK HERE! 1 2 3 4 28

   By Helfrichs Chick, October 6, 2007
   • 689 replies
   • 456,074 views
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   • mcarroll
   • December 25, 2021
2. Thy Holy Tome of ID Sites

   By carbon-mantis, April 22, 2011
   • 6 replies
   • 28,771 views
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   • Harrisonbored
   • July 3, 2018
3. Help! Look what he did to my live rock!

   By Micro-Reefs Aquariums, yesterday at 03:55 AM
   • 2 replies
   • 91 views
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   • seabass
   • Yesterday at 06:50 AM
4. Found this on a coral my LFS said I didn't have to dip because they quarantine their corals

   By Tryp72, Sunday at 01:23 AM
   • 3 replies
   • 112 views
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   • Tired
   • Monday at 10:29 PM
5. Bristleworm looks a little unusual- different species than the usual sort?

   By Tired, Sunday at 01:32 AM
   • 0 replies
   • 30 views
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   • Tired
   • Sunday at 01:32 AM
6. Coral and Nudi

   By Broseff, April 30, 2021
   • 3 replies
   • 131 views
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   • DevilDuck
   • Sunday at 12:21 AM
7. Snail ID

   By jesseatam, January 5
   • 5 replies
   • 103 views
   • 
   • Daniel H
   • Friday at 01:43 PM
8. Is this a Majano?

   By Crammy, January 2   

   • id question
   • 2 replies
   • 91 views
   • 
   • Afkomjorgen
   • Friday at 07:57 AM
9. Hitchhiker coral? On toad frag

   By BioBoy16, December 26, 2021
   • 4 replies
   • 171 views
   • 
   • BioBoy16
   • Friday at 04:11 AM
10. Is this a sponge? Or something to be worried about

    By spencerReef, Thursday at 11:19 PM
    • 2 replies
    • 53 views
    • 
    • spencerReef
    • Friday at 02:48 AM
11. Mystery larvae caught just after dark - what will these guys become?

    By DaJMasta, January 3
    • 9 replies
    • 194 views
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    • DaJMasta
    • January 7
12. Bright red and yellow stuff at the base of my palys

    By Dave MN Nano, January 6
    • 4 replies
    • 62 views
    • 
    • Dave MN Nano
    • January 6
13. coral

    By ulchevy, January 5   

    • identify
    • 4 replies
    • 125 views
    • 
    • mcarroll
    • January 6
14. What is this?

    By Nixperience, January 5
    • 7 replies
    • 107 views
    • 
    • jservedio
    • January 5
15. What is on my Cespitularia?

    By stevie1493, January 5
    • 3 replies
    • 57 views
    • 
    • stevie1493
    • January 5
16. What is this?

    By InAtTheDeepEnd, January 3
    • 8 replies
    • 114 views
    • 
    • Snow_Phoenix
    • January 4
17. Please ID this? Tiny polyps growing on the rock

    By Deisler, January 3
    • 1 reply
    • 91 views
    • 
    • Frag Factory
    • January 3
18. A seastar suddenly appears

    By EarleD, December 29, 2021
    • 7 replies
    • 158 views
    • 
    • EarleD
    • January 2
19. Flatworm?

    By jesseatam, December 30, 2021
    • 3 replies
    • 64 views
    • 
    • DaJMasta
    • January 1
20. Small critters ID please

    By Rowena, December 25, 2021   

    • critter
    • 7 replies
    • 131 views
    • 
    • Ohmegg
    • December 26, 2021
21. Algae ID

    By Proxo, December 23, 2021
    • 3 replies
    • 74 views
    • 
    • mcarroll
    • December 25, 2021
22. What is this?

    By Inspgadget, December 19, 2021
    • 2 replies
    • 97 views
    • 
    • Inspgadget
    • December 19, 2021
23. What leather is this

    By Xj reefing, December 18, 2021
    • 8 replies
    • 139 views
    • 
    • WV Reefer
    • December 18, 2021
24. What are these white plasticky things?

    By Dave MN Nano, December 18, 2021
    • 1 reply
    • 88 views
    • 
    • WV Reefer
    • December 18, 2021
25. ID please, big mushroom looking coral

    By WormLicker, December 18, 2021
    • 2 replies
    • 66 views
    • 
    • WormLicker
    • December 18, 2021