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Got these a couple months ago. The whole rock was perfectly covered with these Zoas. The bare spot is slowly expanding. I've read something about zoa eating nudi's? Should I just take it out of the tank, coral dip it, then toss it back in?
I don't think it could hurt . Don't know much a ton about salt but I have read about people with similar issues, doing this and it stopping the bare spot from spreading. I don't remember if any of them found it to be from a parasite or not.
By the way, may I ask what the coral is in the right of the picture. It looks great!
Could be nudibranch. I would pull it, dip it and inspect it closely. If it's slowly melting away your probably right on about nudi. Make sure to inspect for eggs as well. If you have one nudi you could have more.
*Sent from my little corner of the reef. Nano nano!*
I'll have to take a closer look. Never had a Zoa melt. basically whats in my tank now is all the coral ive ever owned. At first I was thinking maybe too much direct light on that top portion since he was in the smack dab middle, so I moved him back to get some shade from rocks. I'll peek to see if they just look closed or melted
Nah, he was originally a good 3-4" away from the button polyps. I don't think that is it.
In terms of the "melting" of zoas.. not sure what they look like melted but theyre definitely not just closed. Looks like they are crusting up a little
You do what you want but all species of Palythoa produce a chemical called Palytoxin, which is a very potent neurotoxin. It does not have to touch its neighbors to harm or at least irritate them.
The larger orange polyps are open, looking good but after a close examination right now, looks like I have an Aiptasia right in the middle of it. Now the neon orange zoas I got initally had 3 polyps and it has about 6-7. They look sharp!
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