Cloner on 24/7 may be the issue. I do that it takes weeeeeeks to root. Timer dialed in and 3-5 days roots are popping. 2 gal is minimum. Gal=months. I also use these square bato pots on tables and SoG like 2gal ea. 2 week veg then flower should be fine, probably crowd a little bit at the bottom but nothing serious. Drop the bleach IMO use h2o2 instead couple times a week. But if it's working don't fix it.