Peanut Butter on the Brink

My peanut butter fruit tree (Bunchosia argentia) was looking pretty feeble. The leaves were very yellow and wilted. I tried some chelated iron and fertilizer but nothing seemed to perk it up so I turned to the forums. The gang almost unanimously suggested that the pH was too high. So, I did a few things, I added some acidifier, mixed some vinegar with water, put some Miracle Grow Miracid on it, and added pine bark chips to the top of the pot. I don't know which of these, if not a combination, did the trick, but eventually it did green up on most of the leaves. The others have dropped, so I'm hoping there's a enough time left in the summer for it to do some proper growing.