To be honest - apart from the bloating and the tail he does look too bad - he's not sinking or hanging around near the surface, he's just quite still - has a little swim every now and again and then stays quite still again...
I know he probably won't make it but I'd like to do what I can to try and give him a fighting chance.
How long should I put the black carbon in the filter for??
Dosn't it have a name on the filter.
Is the filter the same name as the tank if so what the tank name.
When you open the filter does it have enough room left to add another sponge.
Have just done a water change and had a look in at the filter sponge - there's definitly room for some more sponge - the other half has just gone out for some now and some bacteria meds!
If you go to bed early run the carbon alnight, then add the med when you get up.
Before you add the med don't forget to remove black carbon from the filter as it will just remove the med from the tank.