Man! this is my 1st time to this forum. I have to say I've never seen so much immaturity, and tough guy attitudes sitting in front of a screen.
A young man comes here with a serious grower question, and you treat him like shit just because he showed his face. Must be a bunch of teenagers making...
Way too much moisture bro. and too high pH. Your plants are rotting. I don't do straight coco. I do a 60/30 mix of perlite to increase aireation. I currently have 20 seeds in 60/30 mix and I have to moisten almost daily, but never soak; not at this stage. Get rid of the dome for sure and raise...