I need help with my two babys not sure what to do

One of them a couple leafs have a one or two brown spots and a lil bit of curling? Should I start giving them nutes? I water them when they start to get dryish,my temps are Usually. 76 to 80 and my humidity is around 40s 50s I have 2 100 watts cfls over 1 over each, I have a lil fan to keep air flowing in the box I'm useing a medium dirt that keeps the ph lvl 6.0 I keep them under the light 24 hours? I want it short and bushy

How old are they? What kind of soil is it? Start your Nutes

They are month and a bit I use fafard light poting soil has a bunch of good stuff for the plant

For the nutes should I start with a lil bit in the water at first?

What kind of Nutes do you have? Do 1/4 the recommended to start

I'm going to use bloom builder

It's hard to tell from the pics but use the KISS method (keep it simple stupid). Most beginners over water,over fertilize. The vegging plant has very simple needs and is very hardy.

You do have drain holes in those pots, don't you?

Yes there's lots of drain holes