The ladies showed signs of Nitrogen deficiency which made me realize that I haven't been feeding them frequently enough and enough in general.
I noticed a stunted bud development. To be honest I expected the buds to be way bigger at this time. The big factor is probably that I haven't been feeding them enough for the setting they are growing in.
The large air-pots would have required me to feed more volume. I think I have hampered growth and development by starving them without realizing it.
I am feeding more since a couple of days and I hope for some positive development for the next and last few weeks.