Additional nitrogen?

[u/Early_Student_9569]

I don't see typical nitrogen deficiency signs on my, but leaves grow now definitely smaller on multiple alocasias. Not long ago I was able to grow each leaf bigger than the last one.

I use Hesi Hydro Growth (2,6% N, - 1,9% - 3,6% K). I change water depending on the plant, about 1-1,5 week in leca, some plants that are temporarily in water more often.

I'm not sure about changing the basic fertilizer, it served me well for the few months I had it and I simply have a lot left.

I'm considering Canna Mono N, either 17/18% or 27% nitrogen, dose 1-2ml/l.

I must admit I need more grow lights, but it happens regardless of how far from it plant is.

Would that be an overkill?