BSF - Sig Sour XXL Auto - First Grow

This week has heated up, the grow humidity has increased to 60 to 70 percent, I'm still without an exhaust fan, so I am keeping the grow open whenever possible. Day 8. I noticed some leaves with yellow spots (unfortunately I didn't take pictures), so I started using 2.0ml of Fat Crystal Vega Microbes, which is a mix of rhizobacteria, nitrogen fixers. Day 10. Today I transplanted it to a 7.0 liter pot, I am using a substrate composed of shpagnum peat, pearlite, vermiculite, and a littlest of Fat Crystal Supersoil Mix, well below the recommendation, and as organic matter, I use my own substrate from Jaboticaba tree, which I use in my garden. Day 13. Everything was going well, apparently the yellow signs did not increase, their ramifications seem to be developing quite close to each other, I think the problem is lack of light so for the next week I will decrease the height of the LEDs.