Ok, getting them transplanted today.. I have a dimmable ballast so will def be starting them off at 500w 50% power, I have lots of work to do washing this coco, got the bonticare bales and ppm coming out is upto 300+ my tap is between 96 and 130 depending on which facet I use so need to flush it all with my tap get down to least 130s then planning on taking the first few the layers of coco that the seedlings will be growing into, like the first gallon, washing that with distilled water, doing that I get the ppm to like 30, I figure the bottom 2 gallons will get washed with distilled water (and nutes of course) during by waterings so by the time the plants grow into the bottom 2 gallons of medium it should all be clean, does this sound right to do? Or should I flush it all with distilled water? I am purchasing my water by the gallon and to flush all that coco would take a whole lot. One more question as well, I will be feedling with canna nutes with a bit of added calmag as needed, when should I begin feeding them? I have read many different things, growing with coco I know they need to eat soon but now or later? Btw, my strains growing are roadrunner #2, auto white widow, auto amnesia, sugar mango ryder, auto assassin and russian rocket fuel, if any u have experience with these and can point out any special care needed, light feeders, heavy feeders, etc, be appreciated.