Bugs in Aquaponics system?

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Question by Goldfinger001: Bugs in Aquaponics system?
I have an aquaponic system at my home. (Aquaponics and hydroponics are not the same thing, but very similar. Basically in aquaponics you are adding fish in the picture, the fish poop fertilizes the plants, and the plants clean the water for the fish.) Anyways, I am growing lettuce in my system, my lettuce is being eaten by insects. I did a little research and Dipel and Bontanigard eliminate worms and nats. Where I live we are going through a drought, we have 5 different kinds of roaches at my house. 4 of the 5 kinds have taken up residence in my lettuce, the roaches are everywhere. I heard neem oil will take care of them but if the oil gets on the lettuce, the plant wont taste good. Would Dipel and Bontanigard take care of the roaches ? Or are there other products I can try that will be safe for my system and myself?

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