So i'm not really sure what kind of algae it is. It doesn't come off in sheets like GSA. It comes up when i vacuum in big clumps of gunk. It may be an overfeeding, i do remember left over brine shrimp laying on the substrate, but i assumed the loaches would clean it up.
So i read that sunlight is a major culprit. The tank does get indirect sunlight, the nearest window is a sliding glass door about 20' away. It's a new tank, roughly 2 months old and my other tank is much closer to the same window and does not grow the same algae. I read on a previous post of a method suggested by wkndrcer of using h2o2 to spot treat as well as tank treat. I've been just vacuuming it out but it comes back in 4 or 5 days.
Another part is bad water circulation. I just vacuumed mine out (I cry cuz it takes out my aquasoil and I treat it like gold) but hopefully with the extra circulation I added it might help. Ive heard blackouts work too but I would like to save that for last. Sunlight might be part of the problem but my tank gets very little sunlight as my blinds are almost always closed and it is very shady outside so its not all the problem
Definitely not low circulation. I've pondered if my tank has too much current. I have the spraybar from my canister filter plus a 200-something gph circulation pump and every plant in the tanks has decent sway to it, some very much so. Vacuuming and spot treating with h202 today. Very minimal h202 to start with.
It's been a couple of years since I had a BGA outbreak but typically if I got one it was because I got lazy; I wasn't fertilizing regularly and let my nitrate level get low, wasn't doing my weekly water changes, and wasn't keeping up with cleaning my canister filter.