I have a dwarf Navel Orange tree and it's showing some problems on the leaves. I have it potted in a 3 gallon pot with miracle grow mix (shitty, I know...but temporary until next transplant). I got it about 3 weeks ago and new growth was great, it was healthy. So far I have only watered it...no nutes because of the soil mix with ferts in it. What's happening with the leaves is a drying and crinkling up at the edges...almost like something was nibbling on it and those leaves are slowly dying. I haven't seen any bugs...other than fungus gnats in the grow room, so I took it outside for a few days and it seems like it's progressively getting worse. I see brown spots on some of the leaves and they look like they want to do the drying up and crinkling thing too. Now, the new growth is still doing fine....I'm lost on what could be happening here....any help would be so appreciated. One thought...did I over water this thing?