thanks, the tank is only like a week old it's my first, LFS said that this is a normal part of the cycle and that next i'll have green algae. i'm doing frquent water changes with water from the store RO/DI, like 5g every 3 days only animals in the tank are snails and a huge bristle worm that the LFS said should be fine as it dosn't appear to be a fireworm.
thanks again for all the help