Thanks for the reply Joe,

Gizmo is in a 40 wide with a Fluval 304. She is all by herself in there as of now. I was thinking the food may be key but the thing is this has happened in a previous tank with her and with a different food. I have been adjusting her food intake by her mood. Some days she will not touch a thing.

I had done a full water change and a filter clean on the 15th which is the night I posted. My wife and I went away to visit relatives and when we came back Wednesday night it was the same stinky show. I took a PH sample and it was way on the acidic side. So I have thrown everything out in tank except the turtle and I have done a filter media change.

Today I noticed what can be described as an oil slick on the surface and quite a bit of flaked off skin. This appears to be the start every time before the tank goes south. My new theory is that the water is sitting stagnent too long. I am going to try and keep the surface water moving to prevent this film from forming again.

I will keep everyone advised.
Thanks again.

Rus

3 RES.
2 African Sidenecks.
2 Yellow Bellies.
1 River Cooter.