ID needed on Acro colony

[Finn450]

Hi All...just noticed what looks to be a growth on one of my colonies. Whatever it is, there are a dozen spots like this on the colony.

 

[Timfish]

My guess is a gall crab. Not really much of a problem for the coral but if it bothers your aesthetic yo could CAREFULLY squirt some H202 into the opening with a syrenge and needle. I would leave it myself.

 

[Finn450]

My guess is a gall crab. Not really much of a problem for the coral but if it bothers your aesthetic yo could CAREFULLY squirt some H202 into the opening with a syrenge and needle. I would leave it myself.

thank you.