what kind of pump would you recommend
 

Hi Ron,

I posted this question earlier. I am sure that you get a lot of questions, so I am posting it again. I will have my 1600 gal recirc system set up in a few days...will be stocked with Tilapia. I printed your plans for your 11-plant system and plan on using this for tomatoes. I have been told that I will have a deficiency of Potassium and Phosphorous coming straight out of the recirc. system. (For tomatoes.) Any suggestions as to how I may supplement this w/0 harming the Tilapia. Also, I asked what kind of pump would you recommend for setting up the 11-plant system. Would I be best in setting a pump/timer combination and pump into a barrel for "x" amount of time and then let it drip through the system or what? Any input would be appreciated. Thanks a lot......Steve

Hi Steve
I use submersible pumps in all my gardens. From 60 to 120 GPH for the 11 plant.
I have only seen lettuce grown from fish waste because it doesn't need much nutients that might harm the fish. You also have to compromise on the pH because fish like it around 8.0 and plants like it around 6.0
Ron