• Amy5070

Julie4738

The most informative thing I've come across on the topic is that the sea slug Dolabella auricularia is supposedly the most effective for control; I saw it in the spring price lists of airif, but it doesn't seem to be in the latest ones. Otherwise, it seems to be worse than aiptasia.

Kevin3579

I also had a similar little stone. I mainly fought them with tweezers, but then I moved them to another aquarium, and the hydroids disappeared within a day and didn't come back. I suspect that the emperor angelfish ate them. It just eats everything. But I can't be sure. The rest of the aquarium inhabitants are clownfish, cardinalfish, chrysipterus, centropyge, zebrasoma, damselfish - blue velvet, and wrasse. Maybe one of them eats hydroids. There is no nudibranch.

Beth3383

Acanthops, along with Helmon, removed a 7*7 patch of live rocks. I haven't seen this thing for a year.

Darrell5975

Helmon is here. But it seems he's a freeloader. If we hold back the feed a bit, he might start working... Time will tell, I think.