I have noticed 2 seperate frags of zoa on oposite ends of the tank have been closed up alot lately.Upon closer inspection I have found some hydroids.
1.How do I get rid of them?
2.How could I have got them,I have not put any new stuff in lately?
Thanks for all the help
1.How do I get rid of them?
2.How could I have got them,I have not put any new stuff in lately?
Thanks for all the help


