Cut way back on feeding, push your skimmer wet, do frequent small water changes, prune your fuge if you have one, if not, get one. Whats happening is your adding more than whats being removed, thus the build up of nutrients. That fish can and will survive on much less food. Acros in general, Efflo or whatever dont do well in a nutrient rich environment, you should probably move it to a temporary location until you get your perams in better condition. Hey, just a little friendly advice learned from experience.