George, you should put up more info, like what ferts, how much is the npk, what are the other nutrients in the fert, what are you room temps like with lights on and off, how long do you flood and how much time in between floods, etc. no one can make accurate assessment just on your pics, however having said that, it really looks like you're overferting because you have dark green leaves with leaf tip and edge tissue death.
also I don't know where konasure is getting his ideas because you can't fix potassium, manganese, or zinc problems with changes to copper or pH. That was one of the more strange things I've read in these forums. If you don't know what you're saying then please don't mislead others with guesses. That won't help the grower.