nntp.nildram.co.uk wrote:
i do have a problem with green algae but i have hermit crabs and turbo
snails along with a yellow tang. I've been thinking of adding a UV
sterilizer to my system but would this starve the snails and crabs.

It won't starve the snails and crabs, but I think it will do little to fix your
algae problem. I had UV sterilizers on my system for years. The main effect was
that infestations like ich slowed down a lot; the sterilizers gave time for
treatment.

George Patterson
If you torture the data long enough, eventually it will confess
to anything.