i have a few questions. 1 im using dyna gro nutrients al ong with pro tekt its highly concentrated it says week 1 mix 4ml im useing the bubbleponic method in 5 gallon totes and was wondering should i cut that in half to 2ml? my 2nd question is i have a 400 wt mh that is 18 inches away is that close enough to avoid stretching and will any closer burn the lil gal?