White patch on Black Tetra

[BCV2000]

Hi can anyone identify why this white patch has randomly appeared on the top one side of one of my tetras? We did a recent water change and water seems fine and all other fish are ok

 

[Rusty_Shackleford]

I'm no expert, but that looks like columnaris to me.

 

[GaryE]

I'm with @Rusty_Shackleford as far as a guess. I can say I had a similar patch appear on an African tetra a few weeks ago, and after about 3 weeks it cleared up. It was internal, not on the outside of the scales.

 

[BCV2000]

I'm with @Rusty_Shackleford as far as a guess. I can say I had a similar patch appear on an African tetra a few weeks ago, and after about 3 weeks it cleared up. It was internal, not on the outside of the scales.

Thanks @Rusty_Shackleford and @GaryE . This morning there seems to be no change so will keep an eye. All other fish seems fine.

 

[Rusty_Shackleford]

Thanks @Rusty_Shackleford and @GaryE . This morning there seems to be no change so will keep an eye. All other fish seems fine.

I would start treatment sooner rather than later. Columnaris is a nasty disease which can spread rapidly in am aquarium. The most effective treatment seems to be a two pronged approach using nitrofurazone and kanaplex.

 

[Essjay]

Unfortunately neither of those meds are available in the UK without a vet's prescription - if we can find a vet willing to prescribe for fish.

 

[BCV2000]

I would start treatment sooner rather than later. Columnaris is a nasty disease which can spread rapidly in am aquarium. The most effective treatment seems to be a two pronged approach using nitrofurazone and kanaplex.

Sadly neither of those are easily available in the UK