No,they did't have mites on them when sold,just a few eggs.The grower let me know he had treated them (organicaly) and told me what to look for and some options for control/extermination,I appreciate his honesty.I see my original quote was a little misleading.Optimal amount of co2 for mj seems to be about 1500ppm or so.Too miuch will hurt them.The air we breathe is 450-600 ppm's so you need to get it upwards of 1000 ppm's to make a noticable difference...or thats what Ive gathered from digging around on the internet.I don't think you can over do it w/ the small sugar /yeast setup but not 100% on that yet (not sure I'ts making enough to do much good either,I'll revisit this issue in a week or so after I'm up and runnin).I thought picking out a tent was tough but lights have me stumped a bit.Magnetic or digital/600 or 1000 watt/what type hood/a very wide price range.I am pretty much sold on an air cooled hood, runnig the charcoal filter through the same duct.I need to get em too the flower room next weekend so I have a little time to look around some more.Probably a hood online but I think I will pay a few more $ and get a ballast locally (ABQ) because of the hassle and costs associated with returns/warranties thru the mail,assuming the "store" is even in buisness in a year or 2 when your equipment blows up.They sure took to the transplant and the happy frog nicely...kicked into another gear.