Blackish Fins On Dwarf Gourami?

[andyseddon]

I recently purchased a male and female dwarf gourami. The female died the next day and so i took it back to the shop where i got it from. They tested my water and said it was fine and so i replaced it with a male. I now have two males in the tank. They seem fine together, obviously they point their feelers at each other and nudge eachother but nothing much. over the past few days, one of them has begun shying away at the top of the tank and i have noticed his fins are slightly black and look weak. What could this be? Could it be anything to do with the two males? Also they haven't really been eating much atall, especially not the ill one. (They weren't eating from when i got them and still aren't)
Thanks for your help,
AS

 

[SouthernCross]

I tihnk I read once that blackened fins can be a sign of ammonia poisoning. How are your water stats?

 

[Yanglicious]

Seems to me ALL the Drawfs around the world is weak... I lost 2 in one day.