Green Bubble Algae

I was cleaning the tank yesterday and noticed about 6 bubbles in the back of the tank where it is almost impossible to reach. The water parameters are as follows:
NH3-0
NO2 0
NO3-0(as far as I can tell)
ph 8.4
Temp 80

I have no other nuisance algae growing but most of the LR is now coralline covered as is 75% of the back glass. The side glass is about 50 % covered in coralline.

Any help would be greatly appreciated.

 

emerald crabs will be pretty much the only thing that gets rid of bubble algae.i dont know of any other.just dont pop it.if you can pull it out without ppping it much better.

 

If there are only a few and they are impossible to reach. I wouldn't worry about them.
It's hit and miss with the Emeralds but if you want a crab in your tank you could try them

J

 

I do have one crab, not sure what type...It looks like an emerald but it is orange in color...Thank you...I am not overly concerned, just hope it does not spread.

 

its probably a red mithrax crab.its the same thing tho.he probably eats the other things in the tank and doesnt have a chance to eat the bubble algae or he doesnt eat it.mine does.

 

Valonia sucks

 

I hear ya, Reefboy

 

emerald crab

 

I hate things I cannot get to, much worse are the things I cannot see. While you contemplate a crab, keep those water parameters in check and it should slow the growth.

 

Thanks everyone....