HELP!! What happened to my Blue spot???

[Marlin65]

Originally Posted by mark

when did you test for ammonia (your numbers from just after the fish died?)? amazing how fast can build even in a cycled after adding a new fish

Did all the tests the day before when he did not eat,and ran all the test when I found him dead. Looked like he had just died so I don't think it had time to foul the tank yet.
If you look at the pictures he still looks good for a dead fish, and he defiantly did not starve to death.
I wonder how many of us loose fish that we have no idea what happened.
The first one I thought nothing of as in this hobby it happens, but two times exactly the same way I find strange.