???
what to do about it?
every few days i have to scrape it off the the inside of the tank ,comes off like sheet of slime..also on the sand
water is clear as a bell
How long has the tank been set up for?
What type of lighting do you have? How long are they on for?
What type of water do you use i.e RO/TAP?
What type of filtration do you have?
Do you have a protein skimmer?
