Quote Originally Posted by stinkyattic
I think your temperature is too high to begin with- see the upwards curl?
And that can easily complicate a nutrient problem.
Does your medium dry out completely between flood cycles, or stay a bit moist?
Could it be that my reservoir temp is too high? I have an aquarium heater in it on its lowest setting....

I don't know why I'd have a temp problem in the garden. I have the lights on during the night.

I've noticed that the burn discoloration is visible on plants that are not in the hydro system (there are other potted plants of similar strain also in the room).

Errrr, the medium is a 1inch rockwool cube and pebbles. the floods a 2 or 3 hours apart. and yes all seems pretty dry between floods.

I've had the Dr in and spider mites and other tiny bugs are visible on some of the leaf undersides. I will try and take a close up pic shortly.

Hope the additional info helps stinky and thanks for ur gro support