5.5 is pretty low ph for soil grows, I would try to get it definately to the 6.5-7 range. Do yo have a ppm meter or anything? With a combination of all that stuff Im wondering if your soil is 'hotter' than it should be. Also the molasses isnt really needed during veg, its generally used dring flowering for extra sugars (as the nitrogen is generally gone). And watering once a day is a lot of water, are the pots pretty dry every time you water?

First off tho I would get that temp thing! Go get one off ebay, i have an eco plus one that keeps track of min/maxs which is super handy for like 10 bucks. Good luck!