Hi there, I'm looking to try one plant first as I am in England and growth is illegal I've spent around £200/$325 on a small indoor tent, 400watt HPS bulb and relactor, oscillating fan, soil, extra nutrients for each stage, a extractor fan with carbon filter, 3,5,10 gallon pots, a PH meter, a PPM meter, a temperature and humidity meter, I've tried to purchase everything but I'm sure there's something I've missed out?