Hi, I have been having some troubles with coco cloning lately and decided to seek some help after 200-300 clone deaths
First off, I have successfully cloned in coco before with very good success. Last 2 rounds have been a disaster tho.
I have followed the instructions - soaked the coco with very light bloom nutes and very little H2O, squeezed it very well before going into cups, pack tightly around the stem, used a little bit of gel. Clones are under a dome, temps are 78-85 F, I let fresh air twice a day, coco is drying with a reasonable speed (I think). The light is HPS shaded by a bed sheeting.
Most of the clones' top leaves go very yellow and curl on themselves and some get the slime/root rot. They don't look too bad but I know from experience most of them will die.
I decided to do a few with rootIt plugs to see if there will be any difference - there is. Got roots in 7-8 days and all of the clones are looking pukka. I have used the same soaking solution, the temps, light and RH should be pretty much the same.
So, any suggestions? Am I packing too tight and suffocating them? Is coco too wet (doubtful). Should I remove the dome?
Thanks for any suggestions