At the bottom of the main stalk at the point roots start. This forms a kind of ball of roots. This area of roots needs more air than water. If it stays wet toooooo long the plant starts to drown. Outside it can rain for 3 days, but much longer and problems start. Same with hydro. That's why with a constant feed you need to keep it over to the side of the airball. The rootball needs at least one hour of oxy to be good in a 24 hour period.

All other roots that hang down can stay under water 24/7.

Either way will work. Tweaking things for yourself is what it's all about. find a path, stick to it, tweak to change. This way it is much easier to look back and make tweaks or see what the tweak did.
LOC NAR on probation Reviewed by LOC NAR on probation on . Feeding regime Hey, this is my first grow, using a wilma pot big 4 with just clay pebbles, with canna aqua vega a and b. the plants are in little root riot propagation cubes and are 4 weeks old from seed. Just wondering how often to feed or too keep the nutes flowing ? Got three on the go at the moment under a 400watt hps, with plenty of ventilation and air movement, 2 of them seem very happy although the third is a little dry, and curling under with a few brown spots although very tiny and a little Rating: 5