I'm sorry i'm french
I have 6 carinotetraodons travancoricus in 60 L with fourties shrimps (neocaridina sp green) since december 2008
I have no nitrits and nitrats, and the pH is 7,2 (my water is soft), i change a part of the water every week.
One of my tetraodon had a white fade and smooth spot at the top of his head.

I have separated him from the other and cured with punctol but the spot became as a hole and the fish died this afternoon


Two other fish present today a spot on the head
I'm worry about them and don't know what to do.
No one french forum gave me an answer.
Can you help me ?
Thanks a lot
Marie





