Get all the gro lights you can get the electric on those are very low. PH strips better than nothing but get the drop kind next time. It's a little vessel you get some water and add a few drops of the stuff and compare colors. As for the water unless some one can test the TDS I would buy distilled or RO water. It can hold you back and cause nutrient lockout. Your nutients should be good to start. You will have fun but you get what your lights put out., I learned the hard way.