Curvage in bottom leaves?

Long story short, my baby is 15 days old. Watered 3 times in it's life, the last being half a table spoon of Iguana Juice Grow (1st time user, amazing results in 2 days).

After the nutes, it has become soo much greener and livelier but I noticed a little curvage in the bottom leaves. This is my first ever grow, under 3 cfls.

Also, does the PH go up or down with organic Iguana Juice?

Thanks

its just a little extra growth to fast dont feed them for a week and let the plant get stable

ph goes down when you add ferts

Plant looks realy small i would'nt go giveing much nutes at that size wait till it gets a little bigger use just a small quantity of super thrive but to be honest i find that when plants are small i feed just water for the first 2 week feeding any earlyer and you will find that you will be back on asking why are my leaves going yellow lay of the nutes for 2 week then add alittle and build up to the correct dose.Iuse vitalink it says use 3/4ml per ltr but during 2nd week i have used has little has 2ml per ltr till i feel my plants are strong enougth to up the feed.I feed my soil plants the same has i use in my hydro system and plants have always done well.