I hope not the dreaded .......

I just noticed these little thingys on this live rock that was put in my tank a week ago.

What is it and is it bad?

 

bubble algae.bad.emerald crab or red mithrax crabs eat them.well it depends on the crab.i had one and he didnt eat it.now i got a new one and he eats it.or you can grab tweezers and try to pull it out.but make sure it doesnt pop if it does it helps spreads faster.

 

Thanks.

I just happen to have one of those crabs but I doubt that I am going to give him a chance.;D

 

And dont "pop" those bubbles inside your tank or they will spread like crazy.

 

Take the rock out and scrub it with a stiff brush if possible ,
had some on a rock i'd gotton' and done it ' and rinse it in Ro water

 

Agreed, if you can pull the rock and clean them off that's your best approach.. Yes a emerald or red mithrix should eat them but their also sloppy eaters and they'll pop them too

 

Will that kill all the other life on there?

I was thinking of taking the out and surgically remove (man with a knife ;D) the cancerous algae so as not to harm anything else.

 

Bubble algae indeed....

 

I have had some bubble algae in my tank for months now. It came in on a piece of rock I got, but my tank is so new that it cant support it so it hasn't spread. I have heard nothing but horror stories about this algae. I think it looks kinda cool. ;D