Initiative Recovery

I changed light covers to a better ones, also separated the cubes from each others because roots have hit the bottom. I wonder if my water pump comes in time, or do I have to get another for temporary installment, plants are getting quite big already. One month of waiting is starting to be too much at this rate of growth. Also, there's some damage in the leaves because I sprayed them with a plant steroid spray called Jaakontaika. It contais various alcohols, butanol, triacontanol and urea. Can cause burn damage on young plants. Did it just once, I'm gonna start to use it more often when these grow big enough. Fed them once with under a liter this week, cubes sucked it in instantly.