So i'm new new to reefs but have had fish for about 2 years. I noticed thats red algae started growing in my fuge and is now growing on my rocks. I know its not red slim because i've had that before but I dont know what this stuff is or how to get rid of it.
4th. I once used a product called cyan---??? something that worked great. I used it and never had a problem again. I'm sure someone on the board will know the name of the product.
