Deadlights in coco

I now have all 4 plants on 12-12 lighting for proper flowering. Of the four, one of the deep water culture plants hermied ( I'm growing it for shitz & giggles). The other is a full fledged male, balls on him like king kong. This will be my male for the seed run. The other two in the tent (in coco) are both small, but healthy and progressing going into flower. Once I've gotten the pollen from Kong, these two will be pollenated for a seed run. I'm still feeding all ( DWC and coco) the same mix. 80ppm calmag , then adding a supplement of epsom salt to to 200ppm, then topped off with General Hydroponics FloraNova ,...topped to 800ppm. So theres really only 600ppm of feed... In terms of water consumption ( drinking). Both DWC's are in 5 gallon buckets and need closer attention. Both are drinking roughly 1 liter of water a day.