1. A

    New white object with tube in center on live rock

    Can anyone ID this?
  2. justfalsefacts

    HELP! What is this…a ?

    So I’m new at this salt water thing and this is my first hammer. I noticed this “pineapple” shaped growth forming on the skeleton of my gold hammer. Anyone have any idea what this is or what it could be? Any input welcome. Thanks for helping a novice out (in advance)!
  3. ChefReeferThomas

    Can I get some ID help?

    Started noticing these little hair lookin guys in spots on my rock, wondering what they could be? Hydroids maybe?
  4. Mikey0909

    Bristle worm / Collonista snails eaters?

    I was wondering if there is any nano fish that can live with clownfish and will eat both of these pests? Thanks for any help in advance!
  5. WheatToast

    Thoughts on purging mobile pests from live rock with hypersaline water

    What are your thoughts on purging mobile pests from live rock with hypersaline water? Explanation from KP Aquatics: "(Optional Step) Undesired critters (we really don’t like the word unwanted pests as every creature has a purpose in life) can be removed by submerging the live rock into a...
  6. tailoftwogobies

    weird mucus mat.. see photos

    hi again yall! weird mucusy, matted web looking stuff in a low flow low light area in our tank.. been around for a little while, doesn’t seem to be bothering anything but it’s ugly & we are curious if we should remove this or leave it alone.. it’s somewhat like an algae growing.. fish, cuc, etc...
  7. Lxnza

    Is this vermetid snail or… what? (I’m new)

    Hello! I’m pretty new in the hobby! Today I just noticed this kind of red worm on my euphyllia glabrescens… Is it vermetid snail? If not what could it be, the bottom seems attached to the body of the coral. Thanks for your time!
  8. SaltwaterGuruNeeded

    Worms on glass. Can you help identify them?

    There is no triangle head...
  9. SaltwaterGuruNeeded

    Worms/Pest on glass? Parasite?

    These are very small. Can barely see them with my eye but I used a high power magnifying glass over the camera lens to capture an image an video. Please tell me these aren't bad. But if they are how do I remove them!?
  10. tailoftwogobies

    id help please

    hi y’all! bought a frag from our LFS and this was at the bottom of the post.. looks like some sort of snail, any ideas?
  11. ReefNewbie12

    What is this thick red algae

    Yeah, I got no words here, it seems to have sprung up randomly (like all the worst algaes do) and didn’t appear near a frag or anything, what is this? Is it some sort of super-cyanobacteria? Will it harm my corals or snails? (I’m afraid the latter would probably eat it regardless) And most...
  12. F

    What is this on my zoa frag?

    I just purchased a zoa frag and during the acclimation I noticed that the plug has this red hard almost mushroomy looking thing what could this be?
  13. Hugo Garcia

    Mysterious Crab

    I’ve had my tank set up for over a year, and never had added any crabs. My tank is a mostly fish only tank, with 2 anemones and some GSP. So I was caught by surprise one night when I spotted a mysterious crab on the rocks. My theory is that maybe when I was adding pods to the tank, there might...
  14. Alexandros300

    Wierd white ish film on hammer

    Hello all, I'm fairly new to reef keeping, and my tank has been established for about 5 months. Stable parameters all in range, alk around 9.3, nitrates 5 ppm or lower, and phosphates sometimes on the high side of .5 (I use a reactor to bring it down below that). Salinity is 1.026, calcium...
  15. SaltwaterGuruNeeded

    Luck with spionid worms? Control? Removal?

    I know they aren't too harmful to things but I just don't want to have worms burrowing into any of my corals. And Im worried about the future of my tank. I have some spionid worms in my sand bed. Anyone have any luck with creatures / fish that eat these worms, Ways to control the population, or...
  16. Selyk

    What’s this growing in my tank

    Good evening just wondering if anyone can tell me what’s this growing in my tank
  17. Schraufabagel

    Pest/Growth ID

    I’m new to the hobby. Please disregard all the algae, I’m still in an ugly phase. There’s something red growing on my toadstool (shown in the middle of the bottom picture) and there’s something else attached to my favia (shown in the middle of the top picture). I’m wondering if either of these...
  18. J

    Creepy Free Swimming Tiny Worms!!! Detritus Worms?

    Hey Reefers, So I went to my tank to do a bit of maintenance this evening. So I put my tank in feed mode to stop the gyres and turn the return pump down to 1%......and when I turned on the tank lights, to my surprise, I see thousands of very tiny worm-like creates swimming around. I am...
  19. Jaden9933

    Bristle Worm?

    I bought a mushroom frag today which actually grew on a snail shell. I was debating on dipping it when I big Orange work came slithering out for the shell! Is this something I should try to get rid of with the dip or introduce to my tank? I currently don’t have any in my tank It actually looks...
  20. A

    Cypahestrea with gray spot?

    I just noticed a gray hole on my cyphaestrea? Params: Nitrates: 7 pH: 7.8-8 Alk: 8.4 Mag: 1440 Calc: 500 Temp: 80-81 all my other corals are doing well and growing, granted they are easy soft corals. The cyphaestrea looks like it has a gray spot on the right which doesn’t look like bleaching...
  21. J

    Is this a sponge or fungus??

    Just moved a rock with some zoas from my older tank recently, into my newer tank where it would be seen more. But anyway noticed today some the heads not opening all the way and noticed a whitish mound at the base, not sure if it's a type of sponge or fungus?? Thank you
  22. Jaden9933

    Help! Strings on Zoas

    I bought a small zoa frag about a week ago that had some “string” coming off of both the stalk and the plug. I pulled off what I could, but, after returning from a week long vacation, they’re all back and there’s more than before! I’ve tried looking this up but can’t seem to find an answer. The...
  23. R

    Hitchiker/Pest/Critter/ what the heck IS THIS, Please Help!

    I bought my first ever coral about 4 months ago, a small 2 head Torch and a fungia plate coral, I dipped them both and got a small flatworm off the torch luckily. A few days into owning the torch and watching it get used to the water and extend, I noticed a little section of bristly exoskeleton...
  24. D

    Nassarius or whelk?

    I got some nassarius snails from a seller ive bought nassariusses from but they were much darker in color hoping its a different species. They are much more active in the tank than my all white ones. They do move quickly on the sand but i have never seen a whelk so im not sure how fast they are...
  25. R

    What is the coolest Hitchhiker that has made their way into your tank?

    We all like to treat our Coral with dip and maybe some of us don't do it or never have at all. I would like to know, what is the coolest hitchhiker that has made their way into your tank? Through buying Coral, live rock or live sand or anything. It would be interesting to find out if anyone has...