I'm trying to figure out what the white spiky things are that are on the side of my acanthophyllia. I am concerned they may sting it when it tries to expand its polyp. Most pictures of hydra I've seen show a much more symmetrical animal.
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Are these hydra? (1 Viewer)
- Thread starter frankc
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ReefMaster32787
Guest
From what i've seen on wetwebmedia that's looks like it
cacarnold3
Active member
Could be colonial hydroids. Do they seem to be irritating the coral at all?
OP
OP
I don't see any damage, but it does seem to be expanding less than it used to as these things have gotten bigger.
cacarnold3
Active member
Well, unfortunately, I don't know of any way other than panacure to kill hydroids and your coral wouldn't make it through a panacure treatment. Maybe try to manually remove them?
