ok here is my first aquaponics system..... wish me luck on this .... i had all this stuff just laying around the shop ... i did go and buy a new 110 gallon tank $85.00 for that ... everything else i had here so far ... i do have a bag and a half of rocks left.... i did all of this today ... all of this will be done indoors for now maybe in the future i will have a greenhouse to work with ... the trays are 8Lx2Wx7D.... i know they should be around 12inches deep but i am only doing leafy greens in there for now so we will see how this works .... just not sure how many fish would be good for me in this tank... i hope i got enough grow beds for this ... i will be using one 400MH, and two 250watt light for now ... i might go over two T-5 8bulb lights later but for now this is what i have ... i have a few more parts i need but i am close to being done...