grow veggies in a hydroponic
 

Hi Ron I have been using your design to grow veggies in a hydroponic system for about a year now and have recently built a
system for my father. I am having a terrible problem with mosquitos! Is there any safe chemicle that I can add to my solution
that would kill the mosquito larvae without hurting my plants? Thanks in advance for your advice. Kevin

That is a new one on me. I never heard of that problem before. Even here in Florida. I would put a lid or a screen on
your tank to keep them out.