24/7 can cause stress, i like to let my girls rest a nice 6 hours each night! also by letting the rootzone dry up, it allows for more aggressive root growth!
Its 6 inch rockwool on top of some crutons in a net pot which is in a 5 gal bucket, root ball just hangs down under the net pot. can't go dry.
I lost a bunch on the left side because the feed pump was turned off for 36 hours and root rot killed some.