Most likely it looks like a bacterial or viral growth? Any way for it to injure itself? How is the water quality - these guys are sensitive. Is the seahorse still acting fine?
You may have better luck posting this to a reef forum.
pic came in from my brother in law who works at an importer/supplier. Not sure how many are in the tank or how long they've been there, I'm at work currently, I'll find out later.
pic came in from my brother in law who works at an importer/supplier. Not sure how many are in the tank or how long they've been there, I'm at work currently, I'll find out later.