ebb and flow

davzz1st

Active Member
Hey can i get some help....I have a 4x4 tray with a pump and resivour Im using 6x6 Grogan Rockwool cubes.. I just moved my plants to the Flower tray and was wondering if I need anything under my 6x6 rock wool cubes..I see roots coming out from the bottom...
also i water evry 6 hours for thirthy minutes... with the lights on and off( every 6 hours four times a day)..... Is watering in the dark correct?

Also My tray floods about half way up the plastic on my 6 inch cubes cubes?
 
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