My water has been cloudy for a while now, seems like it started after I noticed the new fish from the crappy lfs had ick (they're dead now, at least my original fish are ok). I added a bunch of salt (per label instructions) and I turned up the temp to like 85f. I assumed it was the salt that was making it cloudy but I have been doing nightly water changes of at least 25% and it is still couldy! What could it be? See pics below.