I’m using pure coco with Dyna-Gro’s schedule. Never water. always feed to waste, which means keep pouring it in until 30% of that amount comes out the bottom. If the plant is small and the coco is still wet, you can skip days (but not more than 1), but never use just water. Coco is basically just a sponge: All that’s ever in it is stuff you poured in last time, unless that has evaporated or been consumed.