I had my fryeris eating well on NLS and high quality flake and frozen mysis for awhile, but not breeding (couple of holds but no go and it had been awhile)...So to kick it off I dropped the temp from maybe 80-81 to 75-76 and stopped adding salt...I had been adding 1 tsp every 5 gallons...I didn't just do 100% change with no salt, it was maybe 30-40% at a time. Anyways, same food and now the interest isn't really there. One died yesterday of what looked like bloat and now only one female at a few flakes, the male stayed in his cave but did come out long enough to chase a female but not eat...other female watched flakes drift by while she sat in the upper corner, the fins aren't damaged they haven't been overly harassed. Can the change in water trigger bloat? What should I do, raise temp and add salt back, or will that just do more harm than good? Should I treat the whole tank with no obvious symptoms besides lack of interest in food. I've never been completely clear on this, is bloat contagious?