Clean looking setup however black buckets (black anything really) absorbs radiant heat and thus creates a negative atmosphere for said environment both inside and outside your DWC system - setting up stages for dreaded bacteria to thrive......and it will happen it's the life cycle.
DWC is not for cannabis although we have options to grow all crops - this is not the one for cannabis - were not EATING the biomass.....thus the reason for true living soil or time is lost and monies that can and should be avoided at all costs.
Be it as it may the situation can resolve itself very quickly with a 5 to 7 gallon transplant grow bag or pot (white preferred) and you won't regret it come week 3 or 4 in flower going (I wish I would've transplanted into soil) for just a quick nice easy solution go pick up some Purple Cow and just add water from start to finish. Or supplement with your own feed line !! Work Smart not HARD!
Nothing but love and JahBless your way!
like