"What is your soil moisture like, its great that your measuring the water going in, but if the soil is already wet and your adding more to it, your could end up over watering and killing your plant. Watch your soil moisture."

A good way to regulate soil moisture is by adding some perlite to the mix. Your soil isn't bad, as it was probably formulated for growing tomatoes...but it probably doesn't have the greatest aeration. Add some perlite, to loosen up the consistency of the soil when wet. You might also think about adding some finely ground bone meal to the soil. Be sure to add only about 1/4 of the recommended value, as you can always add more later. This should help to promote vigorous root growth right from the start. You can later add some blood meal or fish emulsion for the vegetative stage, and later some quality bat guano for pre-flowering/flowering. Read up, there are plenty of other nutrient regimens you can go with...many of which are great for the plants...but I'd recommend trying to keep the grow as organic as possible. You'd be surprised how much it affects the taste of the final product.

I'd also recommend getting a new lighting setup, if you can afford it. A well ventilated 600w HPS would be ideal for growing just a few females. You can also look into CFL's, but you'll need to build a fairly elaborate setup to use them at full efficiency. There are plenty of threads here that'll help you get a better understanding of light sources and efficient use of them. Just do the research, and enjoy the process!:rastasmoke: