anyone know what these are?

[scubaryan]

I have these in my SW tank and I don't know what they are. Anyone have an Idea. I'm curious b/c I have 3 damsils and a scooter blennie. Can they harm the fish?

 

[Max]

astapsia! I'd get rid of them asap try joe's juice it's supposed to work pretty well. If you give them 1/2 a chance they'll take over your tank. Welcome to A.C. and happy posting.
p.s. look at my sig and read the sticky.

 

[scubaryan]

Why is crushed coral so bad? I have a 1 1/2'' layer as my bottom in my 29 gallon tank. Can you tell me why I should not use this, please. Thanks.

 

[Max]

http://www.aquariacentral.com/forums/showthread.php?t=84360

 

[scubaryan]

Great, Thanks. It's always better to know why then just doing something because someone said so.

 

[Max]