carey
Aquarium Advice Addict
Unless the ph shifted quickly I dont think that is the issue. The nitrates could be making him unhappy though, nems are very particular about their water. I wpuld get those trates down best you can and give him a few days and see if that helps.
Sorry I couldnt be of more help. :-( But good luck with him.
Sorry I couldnt be of more help. :-( But good luck with him.