Black Beard Aglae Problem - Will Excel work?
I seem to have a BBA problem, and only at the front of my tank where my amano pearl grass grows, and there's also on some on the gravel.
In the tank I also have crypts (some little black spots are on them but only one or two leaves), and jungle vals.
I've heard either spot treating or dosing the whole tank with Excel can help, but I'm worried how my jungle vals and crypts will react to that.
My LED lights are currently on for 9 hours a day, I'm going to try reducing it to 8 but I'm not sure if that will help.
I also change 20% of the water every week -- should I try changing it more or less?
Thank you in advance!