Seedlings problem?

First time doing this.

Use root riot cubes and dome. 3 Indica and 2 Sativa from seed. Been 14 days. Use one 24W T5 light.

First week they had way too much humidity because my meter was shit. Figured something was wrong when the inside of dome was damp all the time and I started seeing droplets on the leaves. Removed the dome, but put it back on when all the other non seed cubes started drying out and the humidity got better. Removed all the excess cubes after about a week.

The two to the left are Gelat OG's. Sprouted last. Seem to be doing ok I guess. The one in the middle is a Blueberry and it got me concerned. Have seemed stunted for the last few days without any progress. Little yellowish and a small hole has formed on the one leaf. Two on the right are Super Silver Haze and Amnesia Fast. The former seems ok, the latter has had good growth but I don't like the look of the leaves.

Watered initially with 10ml tap water and half a drop of GHE Bio Roots. Didn't water for a week apart from the Super Silver Haze because the cube looked dried out (5ml tap water after 5 days.) Watered them all again with 10ml after a week and another half drop of Bio Roots. My tap water is EC 0.1 (80 ppm). Since then humidity has been between 60 and 85. Been watering with a few ml. once the cubes get that dried out look.

My light is around 6 inch from the top. Maybe a little less now with the growth. Started with the cubes all on the sides, was told to, but didn't like the bending and having to prop up the seedlings, so a few days ago I moved them all in a line directly under the light.

Take off dome? Water less, more? More nutes?
 

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