First grow, Leaves starting to crisp

Hi all, its my first grow. I have my baby under 6 CFLs, the humidity is fluctuates between 35 and 40 and temp is pretty much always 78.

I noticed major droopage in the leaves last night but it perked up this morning.

Today I notice the very bottom leaves (at least one) is crispy and then the tips on a big leaf are starting to turn yellow.

The plant is about one month old and I have used Miracle grow 9-4-9 Tomato mix only on twice with a period of two weeks in between. I have used epsom salts twice as well.

Here are some pics.



The two in the middle are pics of the yellowing tips. The first pic is a leaf below it.

Any suggestions?

I will check the pH and get back to you. If I water the plant and use a pH strip, will that work?

I have to go get strips. No I do not have the info sheets.

So just tested pH for the first time, YIKES! looks about 7.3 ish... Can I just transplant the plant into new soil? Mostly regular potting soil, maybe some miracle grow mix, dolomite lime, and perlite? Because the current soil is MG potting mix and regular potting soil... Gonna test NPK now...