What is this?

[Nimitz]

Can anyone ID this algae? It's blue in \the first pic becuase I took it when only the actinics were on ...

 

[Pappy]

Bryopsis maybe


Mike D "like the beastie boys" Sent from my iPhone using Tapatalk

 

[spscrazy]

looks like it to me also I cannot stress this enough GET IT OUT NOW! if it's just on the one rock get it out boil it or bleach it or throw it away

 

[SeahorseKeeper]

I would get it out ASAP. You do not want to be dealing with a large outbreak later, like me. out:

 

[Nimitz]

hmmm ... unfortunately removing the rock is not possible .... any other removal method then simply scrubbing it off the rocks?

 

[Poseidon]

Remove the rock!

 

[SeahorseKeeper]

I think removing the rock is the best course of action. Some people have had success dosing magnesium. I would do some research on this first.

 

[droblack]

mag and H2O2 dosing might knock it off.

 

[Nimitz]

as I said, can't remove the rock ... I'll have to research Mag and or H2O2