AsNoriuanswered grow question 5 months ago use only plain water when you water them, no food for this girl till harvest. she looks sad, like ph would be very low . make sure test ph and your meter is working fine. all plants looks too pale, like lack of nitrogen or too low ph and they cant absorb. 1 ml of biogrow is not enough in my mind, i was using 3-4 every feeding, but i fed every second watering. plant could cause some burning, but i see taller plants without any issues on this side, so guess its ph. in soil its essential !!!!