16/8 was on 24 for the first 6 weeks but now since the mother died I put everything in the tank in the cups with lids on them so they can grow better, they were under a grow light. I think the mother died with too much water and too much fertilizer and well in 10 days I don't know what he did to it so like 3 days later after I came home it died. I pulled the mother and let her dry the rest of the way upside down an what was budding can be used I guess.