Backyard Aquaponics
A place to discuss aquaponics

I have close to 100 young tomato plants that are really struggling. A lot of the plants new growth is deformed, stunted and curly with white edges. The system is only 6 months old. It has has 6 media grow beds that are flood and drain. They are 4'×8' and are fed by a 500 gallon fish tank with about 80 fish. pH is about 7 and nitrate is high.
Any help would be greatly appreciated.

Welcome to the forum, pictures would help if you have some. Are you adding any supplements and what is your pH and temp there?

Depends on the pictures. Sounds like leaf curl virus though.

I suppose that's true. Sometimes it's what doesn't get noticed by the original poster that really helps figure out what's going on and if the diagnosis is only as good as the description

For this to be leaf curl virus you'd probably need whiteflies on the foliage so if you don't see the insect vector it probably isn't this.

They will usually go airborne if you give the plants a shake and they are attracted to yellow so yellow sticky traps work pretty well to see if they are there.