hey guys, i have been searching the forums and havent found anything. my lil female motoro on the under side of her disk is inflamed really bad. she sits on the bottom trying not to let her belly touch the bottom. i had black tahitian moon sand in the tank for the last couple of months and i took it out a few days ago. also she is not eating like she used to for the last two weeks. what is causing her disk to be inflamed and loss of appetite? parasite? I dont know. any advice would be great cause i hate seeing her in discomfort. thanks in advance