Hi everyone... I started noticing a bit of a different breathing pattern with my discus.. it started out as them breathing a little heavily at times now all of them are breathing kinda heavy and the only way I can describe it is that it seems like they'll be breathing and every 5-10 secs take a double breath like they're gasping for air... Today I noticed one of them scraping up against a piece of driftwood, and that same one has dark dull colored eyes...
any suggestions??