Join Date: Jun 2015
Location: Alberta, Canada
Interesting you mention GSA, though I suppose thats probably a common problem in alot of planted tanks.
I constantly have a small amount growing that seems to mainly affect the glass and Alternanthera Reineckii (probably because its red and easier to see).
Ive played with various things like upping water changes, adding and reducing amounts of daily co2 (which i thought was going to be my cure), adding and reducing amount of flourish fert, using small pressurized bottles of co2 (pain in the ***).. changed the light bulbs to some 50/50 ones at one point... never could figure out whats out of balance.
Will have to investigate into macro ferts.