Disease Identification Needed

[Apolloefc]

Hi Guys,

JUst need help identifying whats killed my one of my fish. Basically I had a male guppy, only had him a week and he was fine. But this morning suddenly his tail had blackened then as the day progressed it spread until he had no tail left and then died.

Having no joy searching for what it could be so I can take measures to protect the rest of my fish. Any insights would be welcome. I've never seen something spread throughout an entire tail in less than a day.

 

[WILDER]

Size of tank in gallons or litres.
How many fish and which type.
Water stats in ammonia, nitrite, nitrate, and ph.
Black patches can be ammonia burns that are healing.

 

[Apolloefc]

Size of tank in gallons or litres.
How many fish and which type.
Water stats in ammonia, nitrite, nitrate, and ph.
Black patches can be ammonia burns that are healing.

It's nothing like that. All the other fish I have in there are fine, other guppies too. It simply withered away in the space of a day but no other fish are/have been effected.

 

[WILDER]

All I know is that black on fish can be a number of things from ammonia burns that are healing, cancer, black spot, digging marks.

 

[Apolloefc]

All I know is that black on fish can be a number of things from ammonia burns that are healing, cancer, black spot, digging marks.

Seen ammonia burns before definately not that, plus these were not healing, far from it. Whatever it was decemated the poor little guys back fin in a day

 

[WILDER]

I know guppy fins can soon be gone in hours.
Besides ammonia burns I don't know what it was.
Sorry.