"Happy'Cam'per" wrote
The "tufts" you are referring to are commonly known as BBA or black brush
algae. It's a tenacious bitch It is possible to defeat it though, you
need to start adding co2. and you have too many gold fish in a 20 gallon ;o


really? 3 red cap orandas is too much in a 20 gallon? they are about 4
inches long including their tails. Thanks for the tip, I'll read up on BBA.