Pet Forum / Aquaria / Cichlids / September 2007

I woke up this morning and my Jack was breathing heavy. I recently
cleaned its tank, changed filters and added new gravel. I was told at
the store that I shouldn't have completely changed the tank. I have
had this fish for about 4 years now and have always totally cleaned

I added salt to my water. I was told at the store this would be good
for my Jack. Is this a fresh water or a salt water fish?  Should I
remove the salt? I never had salt in it before.