I am growing six sweet pepper plants in ebb and flow system using 100% perlite as the medium and Hydrogreen Hydroponic Plant Food in Arrowhead Distilled Water as the nutrient solution. The plants are growing furiously - perhaps too much so; some leaves are 8" long, and 6" across. All leaves have a very healthy-looking dark green color, but some are grossly distorted from the typical v-shape and/or turned up at the edges. Others have very small irregularly shaped yellow-edged holes in them.

Your thoughts Re: causes will be greatly appreciated.