If anyone reads high times then you would know how to keep the fruitflies and pests away. those two things you need are 1. a bag of water(if you have a serious fly problem) placed on the outside of the grow room and/or area or use cooler climate control settings. 2. the PESTs use a high scouville count of peppers I would recommend the Red Savina pepper or just a habanero pepper crushed(only works with soil, ponic systems try at your own risk roots hate the acidity) sprinkled around the potting soil surface and/or the floor if you have ant problems.... also bleaching cracks and using comet along floorboards and what not(bug entrances). Peppers are the best for most insects especially those annoying vegie spiders. ALWAYS use reverse omosis water and a CO2 tank turn medium sized shrub clones into 16 foot trees should of seen the ak47 clone i had the cops were amazed that I was doing aeroponics in a bussing bucket from IHOP and a turkey batterpump as me as the engene It took two of them pigs to carry the plant under their arms and down the stairs rule number one of growing MAKE SURE YOU ARE SINGLE bitches will ruin it.
HPS with tons of tinfoil and/or mirror. light spectrum isnt a biggie as long as the lumens are refracting and the plants lower branches are getting blaired with light from underneath that plant should be 9 leaved before the veggie state. here is a trick to using HPS effeciently. lower lights to the top use an osolation fan on HIGH about 1-2 feet away pointed UP at the light. cause heat rises :P push the heat away from the plant and u can literally be half an inch from leaves with HPS and dont forget to run an oxygen hose from the CO2 tank and tie it to the back on the bottom of the fan guard. This will help the plant not stress so much and a plant loves moving everyso furiously in the wind (this promotes strong roots shoot and stalk) start em young or the plant will fall over it will grow leaning and then during flowering it will topple over
you will need to raise the light when the stalk is thick then you can work on making it tall when it has the strength to be awesome. A good sign is when the sproutling starts growing into the wind.