100watt hps (screw floros, I cant get em to perform above clone) per 4 moms, and I get 10 cuts per every 4 weeks. Shit, cant keep up. I mean, 10 cuts per, after I chope em down to a bloody stump previously. Flood and drain twice a day, 100ppm 3part nutes in 15gallons. Change 1 time a month, and same exact nute rate. Ph stabilizes after day 5, and remains for majority of month. Damn clean water after a month too. Temps of 85degrees, 18hrs a day.
Biggest problem is they grow pretty damn fast. Also, gotta clean up and replace moms about every 4 months, or they get freaking logs for a stem, and roots grow beyond net pots.
Anyhow, hope this may help. Any variation of these conditions would work i bet. So far, no issues, no deaths, and 90% success on clones. Best of luck to ya!
Oh, btw, you can get about 20 clones easily each other month, off 1 mom thats not even 16" tall. Just trim the gal above all the nodes with 2 flowers starting (when you clone), and youll double cloneables within a month.