Zebra Danio

[millwall]

Below are three pictures of the same Zebra Danio, they’re not great pics I’m afraid but the best I could do. In the circled area there is what is best described as a pox marks they appear in exactly the same place on both sides of the fish roughly 1 – 2mm away from the gills. Originally these where slightly swollen + the fish was lethargic, on consultation with an lfs & reading about symptoms on various web-sites I took these to be ulcers which I treated for five days with Myaxin. The fish picked up within a couple of days after starting treatment & the swellings went down within about three days. The fish it self seems totally fine now but as I’ve described above has been left with what I can only describe as pox marks. Do I need to carry on treating? Or is this normal & healthy flesh will grow back in time. Water parameters are good & all other fish are fine.

 

[The-Wolf]

I had a danio with that kind of mark.
the only thing I could put it down to at the time was physical damage.
I treated with melafix, as that promotes regeneration of skin.
mine healed up and was ok in a week.

 

[millwall]

If that’s the case, the only thing I could think of is that it picked up damage when they where being netted for transfer (no easy task) to a bigger tank, they where fine at the time I was asking you about breeding a couple of weeks back though, which was a week after their move. Do you have any ideas what could cause that sort of damage?

 

[The-Wolf]

yup, netting is often the cause, either directly or indirectly (bashing into things to get away from the net).
don't worry unless the wounds become infected, which I doubt as you treated with an anti-bacterial.

 

[millwall]

Cheers once again, i bow to your infinate wisdom

 

[steelhealr]

A I agree with The_Wolf, however, since you started treatment, I would complete it for at least 5-7 days. Why? If these indeed are open wounds and you started antibiotic therapy, partial treatment may leave you with 'stronger bugs' hangin' around. It's always a smart thing to complete a full therapy with antibiotics once started (unless it was a total error to begin with). SH

 

[allaboutthefish]

I have noticed that the fish in question is a female danio. I have a female with the smame mark, i think it's from when they sparwn, the males chase them round untill she rubbes againts/into plants, rocks or gravel. My opinion would be that it's from rubbing the scales against rough surfaces. That's my opinion anyway. Does it seam plausable to anyone else?