1st grow, mango kush x ?

Hello all, I've been lurking here for a while, and I finally decided to put up some pictures of my first group of plants.

I currently have them in plastic cups with some generic brand potting soil
I am watering every few days to keep my ladies feet wet, with no nutes yet (the soil probably has nutes in it already.

below are some pictures from a few nights ago.

Feel free to ask questions and give advice/criticisms

and some pics from tonight

looking good, can u direct me as to where u got the mango strain

got lucky with a friend that has good connections... however, i had to shut down the operation