Originally Posted by foster53
What temp. is your tank at? How often, and how much water do you change. Bows need as close to , pristine water as you can provide. They don't tolerate nitrates, and dissolved organics very well. Try a huge water change, you should see some results. Then several WC
's on successive days.
25c. I do weekly water changes at around 20-25% each time.
After the last death another rainbow took it's place as the fish looking sick and lurking around the surface. All others acted normally.
Just home now and the lurker has died. I noticed a white mark on her head and some blackening around the scales. She is a little bloated too.