Hey guys, I have a low pressure setup that works extremely well. I am doing a 15 sec on 10 min off feeding cycle. Using GH 3 part nutes as per bottle for regular veg growth. PPM is at 730 and measured water before and after. Have 4 small plants under a 400w MH 18on 6off cycle. One 12 inch airstone at the bottom of the res filled with about 3 inches of solution. PH is very low 6's. I have one particular plant and ONLY this one plant developing holes in its leaves, it was transported from soil (cleaned very well) and had this issue before hand. The rest were transported from soil as well but this is the only one that has this issue. It also is the fastest grower. There are no gnats bugs or fungus and the roots are damn healthy. I'm attaching some pics to show.
