hi am jerry this is my second year at bya, am building a larger system now i have two 2000 gallon tanks three feet in the ground , with a deep water grow bed four feet wide and twenty four feet long .. i know my grow bed not big enought for the system , am going to expand it as soon as i build a green house.. will have some pictures as soon , don't know how to get them out of my cell phone ( am old school) i have never posted anything just read your post and make my own judgement, i have alot to learn and used all the i can get...