Can anyone ID Please ?

dtp · Jan 10, 2020

Hi can anyone help identify, have some white stuff growing on my rock, seems to be in the more shady parts and is white. Testing showing nitrate at 2ppm and phos at 0.05. Have attached close up of it seems to be branch like rather then single hair thread.
Cheers

Euphyllia97 · Jan 10, 2020

Following! Have the same near my gsp colony

dtp · Jan 11, 2020

Managed to get one with light off this morning

sixty_reefer · Jan 11, 2020

Hydroids it seems

dtp · Jan 11, 2020

sixty_reefer said:
Hydroids it seems

Thanks been looking and couldn’t find it , looks like a nightmare.

Gareth elliott · Jan 11, 2020

Bryzoans are another that grow on new live rock. Both tend to die off as the tank matures.

NanoDJS · Jan 11, 2020

I would not worry about them at all , these are not the type to worry about, these are more like micro sea fans more or less , I have them too on really old pieces of rock that dont move much and get shade , I have never had a tank that didnt get them after a few years .