What is this

Waynerock · Dec 3, 2018

Super and I mean super small. Like period in a thick book size. Horrible picture but the best I can do with my old trusty magnifying glass. Anybody take a guess?

Dual40IM · Dec 3, 2018

Google (Hydroid)
I think that is what it may be.

ndrwater · Dec 3, 2018

Agree, Hydroid

Waynerock · Dec 3, 2018

Yup I think that’s what they are, so from reading they are harmless? Thanks for the quick look guys

reef lover · Dec 4, 2018

Yup harmless go away on thier own...

Idaho Mojo · Dec 5, 2018

They pop up when the tank is high in nutrients. Medusae stage of a hydroid.
Mine were most likely the spawn of the digitate hydroids that had bloomed at the time.