Actually it seems it may be a bit too efficient at keeping soil moisture, 3 days has passed since last watering and soil humidity dropped just 3 % in this time. If I didn't have the soil probes I would have watered way sooner that it's needed.
Anyway, from now on most watering will be done from the bottom of the pots, except the ones where I add nutes, when needed.
Except of what I put initially in the soil mix, only things I added since are water and a powder root stimulant (added around the plants before I covered them with gravel).
So far the gnat problem seems fixed. Will check for larvae once in a while but no new fliers on yellow tapes, so that's a good sign.
Been also reading about how marble can raise water ph in aquariums while showly disolving and wondering if it can do that in soil as well, but I am not too worried since my mix is a bit on the acidic scale because of all the peats and moss. The grow will be finished in months and most waterings will be done from the bottom so the process should be barely happening in my pots. Marble should also leach a bit of Ca when it disolves. If anyone has more info on this please enlighten us, this is all I could find on the subject so far.
Also plants growing out like crazy. The bigger ones were doubled in size 1 day after last pic and the small one was about three times the size. So she is indeed catching up.
Light is now at 65W, will up it by 10-20 W every day or so. Also need to raise it a bit since plants have grown.
See you guys soon!