What is this?

[Braveheart!]

Also what should I do. thanks

 

[yanetterer]

Bubble algae. If you can, pull the frag out and pluck them off.

 

[Bucs20fan]

+1 to bubble algae, just pull the frag out of water, scrape the algae off, rinse off and place back into DT.

 

[SPR1968]

As above it looks like bubble algae

 

[Braveheart!]

Thanks

 

[kevgib67]

I’d get a couple emerald crabs to help and make sure it doesn’t return. Freeeeeeeeeedom!

 

[Bucs20fan]

+1 to emerald crabs, they get a ton of hate on here but I have one emerald and one mithrax, basically the same thing just red, and they are model citizens and cool to watch.