I have had my system operating over a year.  I get a lot of growth and very little production out of my crops.  My fish are doing fine, I feed them once a day.  My PH is usually between 6.8 and 7.2.  My Nitrates are between 80 and 100.  Nitrites and Ammonia are nil.  I add aqua Essentials on a regular basis, usually once a month.  I have three grow beds that use the bell siphon.  My system is in my basement with adequate ventilation and I use a HPS light source on a traveling…