A couple of these bugs came off my zoas after dipping. They are very small, 2-3mm. Mostly translucent. They have 2 thin long antennas on their head. I looked at photos of Zoanthid-eating nudibranchs and those are much thicker than what I found. Are these just amphipods? I do have amphipods in my tank. Trying to figure out what is irritating my zoas and palys.