Brown stripe down guppy

[riko]

Hi.  One of my guppies has developed a brown stripe down the side of its body including the dorsal fin.  Assuming it was a potential bacterial infection and noticing that it wasn't moving as quickly as the others in the tank (all of which are still fine and show no signs of disease) I treated the tank with Melafix for 7 days.  Although the particular fish started acting more normally there has been no change on the brown stripe.  I wonder if others think this is bacterial and if so if I should continue treatment or not even through the fish it now acting normally?  Any advice appreciated.  I have attached a photo of the fish concerned.  Thanks!! 

[Tony s]

On 7/25/2024 at 7:45 AM, riko said:

I treated the tank with Melafix for 7 days.

Yeah, that’s not going to do much for an active bacterial infection. There’s no real antibiotic in it. You’re going to need something like maracyn2 since it’s a planted tank. Kanaplex if it wasn’t. Amazon or a local fish store should have it. 

There is a high probability that this is columnaris. What they call saddleback disease. It’s also highly contagious. So a whole tank treatment is needed. 

[Tony s]

Let’s check and see if this is the right meds. @Colu

[riko]

Thanks.  Unfortunately I'm in the UK where you can't buy Maracyn but I found a recommendation for another equivalent product so will give it a try.

It is waterlife myxazin

[Colu]

The active ingredient acriflavine in waterlife myxazin will treat bacterial and fungal infections can be harmful to plants I would quarantine and treat if you can

Edited July 25 by Colu