Watering with Ebb & Flow. Greens are in rockwool

GreenRook

Member
Whats up guys I'm new to growing and I was wondering how often I should water my greens. Here is what I have going:
2ft. by 4ft tray ebb and flow setup, 600w vent cooled lamp, room temps about 80 day and 75 night. humidity sits around 60.
I have 8 plants posted up in 6 by 6 inch rockwool cubes. the cubes have a coco mat they sit on top of.
I've been hand watering them every other day with filtered water with a pH around 5.6-6.2. and the ppm around 1030. The leaves look pale and my larger clone has yellowing around the leaf tips.
I would love some help with what I'm doing right and wrong. And most importantly find out how often to water these cubes cause they seem to hold a lot of water. Any help is great. Thanks!
 
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