Help please! Slow growing plants in coco not drying out

[carper]

Yeah I leave water for 24 HR or I have been collecting rainwater which been told is the best ways to and oex

Have you tested your run off

 

[kin88]

I agree you can get away with not watering as much for the first week. And if that works for people, awesome. However, I do disagree about the roots not growing well in saturated coco. I put my current grow on the drippers for 3x a day, in 1gal fabric pots of coco/perlite as soon as the germinated seeds broke the surface. I had happy healthy plants with roots poking out everywhere by day 30. Roots will not grow well in saturated soil. They will grow just fine in saturated coco. Especially if they are properly fertigated.

I am about to transplant my 4 marias to a 5gal fabric pots. I am running straight coco and as don't use any perlite, I think It won't be that great watering several times a day right?
It is my first time growing. Finding a balance in coco is not that easy.
I am currently running a 150w TS1000 from mars hydro in a tent of 80x80x170cm. I have 2 kali mist and 2 white russian. But it hasn't be easy Finding a balance with watering. I know that if I would run mixed with perlite I could water multiple times, but is not the case with straight coco right?
I am on my 4 week since sprout. And tomorrow will transplant them.

Have a RH between 45 and 60% and temperature at 24 °C during day time and 20 °C during night cycle.

Tap water 440ppm and with nutes 800ppm

Can you give some advice about it please? They don't look that healthy...always with the leaves pointing down, especially the white russian