I MIGHT LOSE ONE... any ideas, opinions? PICS INCLUDED

ok guys, got eight 3 gallon and 3 4 gallon. all have 3 inches of hydroton in the bottom, then up to 6 inches from the top with ffof, and another 3 inches of store organic seedling mix. the white dots are alot harder to see as the plant has gotten bigger from this morning, i think i was just buggin out. anyway here are some pics

Still massive pots for small seedlings, wouldnt a small pot with just seedling soil work out a lot better?

i wanna avoid stress... so i figured big enough to only have to transplant once

Yer i'm lazy and just lift the whole pot shaped mass of roots out and plonk it into the new soil, cover and never any stress, i do make sure to cover the old soil with at least an inch or two of new soil though, takes 2 mins.

you shouldnt have transplanted into such a big pot yet, make sure you dont water that much, that little of roots and so much soil will keep it moist for too long and cause mold/root rot, just watch out for that and next time wait a little bit longer to put them in bigger pots, i usually start in dixie cups until about 6 nodes high, then transplant. and as for the white spots, most likely mites, id mix 1/4 rubbing alcohol and 3/4 water in a spray bottle and spray the undersides of your leaves every day for about a week, that will kill them. did you disinfect your grow room before putting anything in there? that could be the problem too. just try the alcohol for a week just to be safe and youll be fine and dont worry it wont hurt your plants