I watered until runoff, but only a tiny amount, which I cleaned up. Now I put a tray under it and will water for more runoff.
As far as the nutrients go.. I mostly gave it tap water with pH down until at range 6.0-6.5. I sometimes gave it mineral nutrients at 1/3 dose, but it didn't make much of a difference so I mostly just used plain pH'd water.
Deficiencies started with the first leaves and have been there until now.