Here are some pics of my brown algae. I don't know if it is Diatoms or BBA. It keeps getting worse and I have tried everthing. I decreased my lighting from 13 hours to 10, I have been keeping my nutrients balanced ( about 1ppm Phosphates, 15 ppm
Nitrates, about 20 ppm
Potassium, and about 15 ppm
magnesium) Any suggestions on what I am doing wrong?
Sorry about the picture size. I couldn't figure out how to make it bigger.