top feed hydro purple widow clones

hello fellow growers i just assembled a hydro system its a top feed setup it has a 3gallon tote with a 70gph pump with 3 1g pots setting on top filled with lava rock that i bought and smashed up and washed i also added a dripper ring around my plants that are in rockwool and a airstone and airpump for my res. i drilled holes for reciculation of the nutrient solution and i have the girls under a t12 agrolite horticulture 2ft lamp heres some pics its been going for about a week .....:D



oh and how many times should my pump come on for the drip ??? i have it 90min off 30 on since the timer is 30min intervals need some info thanks!!


pic#1 is of the grow box i have them in , pic#2 is of the clone thats doing really well pic#3 is of the others i dont have the drip setup in the photos!