I forgot to mention how much water I use...

I stat my cuttings/seeds off in rockwool. Once I transfer them to pots I use about 150 - 200ml per watering per plant. I stick with 150-200ml a watering until either of these things happen...

1, I see a root at the bottom of the pot
2, The coco starts to become dry (don't let coco dry to the point where it becomes light brown)

As soon as either of these things happen, I start increasing the amount of water I use by 50 or 100ml each watering, until I reach the point where I am watering until run off.

(You might have to tweak the amounts a bit for your setup).

Please bear in mind that I am not an expert and I am still learning, there might be a better way, I am just letting you know what works for me.

I would also suggest doing a grow log if you have a camera. That way other people can spot problems in your setup.