Need some help. Just noticed some patches of my Monte Carlo have been turning light yellow and transparent. Been growing very well up until now. Dosing EI (Kno3, kh2p04, k2so4, trace every other day). I'm in Toronto so water is already pretty hard. And injecting co2. Based on API test kit nitrates : 20-40 ppm and phosphates: 3-5 ppm. CO2 is at least 30 ppm.
Lights are on 6 hours per day.
Lights are on 6 hours per day.

