r/ReefTank • u/BiggerHeartThanButt • 2h ago
r/ReefTank • u/AutoModerator • 5d ago
No judgment questions zone - October 12, 2026
Here is the place to post questions about pest ID, coral/fish ID, your cycle, or any other questions that generally wouldn't start up a conversation. If you have an interesting or unique question please create a new thread so everyone can discuss it in length!
r/ReefTank • u/ZoaddictCorals • 3h ago
Gooseneck barnacles feeding
They seem to be doing well. They pull in food as it passes by. Haven’t noticed them reject anything or spit anything out. Even the small baby ones are seemingly doing good. Time will tell though.
r/ReefTank • u/FartmanBreaux • 2h ago
Critter ID, what is this?
Just noticed this, what is it?
r/ReefTank • u/Dom3alex • 1h ago
I got a Clown with a ghost face on it
Is it rare or common? Paid 15$ for this ocellaris.
r/ReefTank • u/TCin541 • 8h ago
Nano tank especial
20 gallon nano with a 6 gal side tank ... I let this thing go into the trash heap the last few years but now I've been back on top of it and it's crazy that all the corals survived the obsurd hair and bubble algae outbreak, and have grown back this much already .. some of the SPS were the size of a pinky nail under the hair algae
r/ReefTank • u/GeneralSaxy • 10h ago
Any of y'all get tats of your creatures?
This is my pistol shrimp Roland, my little gunslinger
r/ReefTank • u/Jgurry8092 • 6h ago
Quick critters..
What in the world is snatching food from these little holes?
r/ReefTank • u/ChivasBearINU • 1h ago
DFW expo pickups. Knicks and a dragon soul i believe. Knicks is almost branching into 4 heads. $130 for both.
r/ReefTank • u/Austinchao98 • 9h ago
[Pic] This hobby tests me
Lost 80% of my chalice overnight. I know it's worth it, but damn... Just when my hammers were getting as big as the one I lost to brown jelly, this happens.
Quarantine bucket, peroxide treatment, scrubbed off the jelly. Not easy to frag the encrusted part so I let it be. An old frag from this same colony is growing on a rock in the corner of the tank, healthy and untouched.
r/ReefTank • u/Eachares • 1h ago
[Pic] Why does my chromis look bonked
It looks like he got bonked on the head… why?? Ive had him for 2 months and he’s always looked like this lol
r/ReefTank • u/Minimum-Estimate-414 • 3h ago
help: got this poletti mushroom for 15 bucks
it was attached to a frag and now it just detached itself from the frag.
i’m dropped it in the low flow low light area of my tank. is this good? or should i move it?
r/ReefTank • u/NSteenen • 10h ago
Bought a bubble coral in bad shape today and this one came with it
Anyone know what it is?
r/ReefTank • u/No_Media9196 • 5h ago
Advice on how to make tank look better?
I apologize for the bad video work, tried to capture best I could.
First ever salt water tank, 15 g. have some new corals and stuff but doesn’t feel complete or right imo
Anything I should add, change, or keep? Any Help appreciated
r/ReefTank • u/Chebo512 • 1h ago
Sponge?
I think I have some sponges bothering my coral. Should I remove them ?
r/ReefTank • u/aqualumber • 6h ago
[Pic] Dino or canopy?
Ive been struggling with this for the last several weeks. Nitrates were 8 and phos under .1 when I last tested. Really making me consider tearing down the aquarium
r/ReefTank • u/Baty41 • 5h ago
My first saltwater setup, been a learning curve but going well
Around 7-8 months old at this point I'd say, first corals went in less than a month ago. Slowly and patiently seeing how they do and then getting more if the answer is well!
r/ReefTank • u/Key_Confection3535 • 10h ago
[Pic] Is this cyano?
I’ve treated with chemi-clean on two separate occasions to no avail. An extended seemed to eradicate it but a few days after the lights came back on it was back and spreading rapidly. Any advice?
r/ReefTank • u/swordstool • 2h ago
[Video] New 'Golden Tree' Coral Is So Strange It Needed Its Own Family on The Tree of Life
r/ReefTank • u/RubImpossible6588 • 5h ago
[Pic] Anyone know any good and affordable PAR meters?
All the par meters I’ve seen are in the 300$+ range and I’m looking for something sub 150 if possible but I still want something that will last and is somewhat accurate