I just set up a 20 gallon, heavily planted. No fish for a while, so co2 is cranked up. (drop checker is pale yellow)
I have ADA aquasoil, and a photoperiod of 9 hours of T5HO light.
I plan on doing EI ferts, but in the past I ran into trouble with immediately jumping into fertilizing a new tank.
My question is, when would be a good time to start EI?