Disease, Looks Like Tb -- Please Help With Id

biensurmacherie

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Oct 3, 2009
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Location
NW England
Tank size: 60L
Parameters normal
Tank temp: Between 24 and 26 deg C

Fish Symptoms (include full description including lesion, color, location, fish behavior): One harlequin rasbora has had lesions at the base of his tail for a few months, and the lesions look white and red but the scales underneath are black. Thought he just had something non-communicable because I was away when it started and none of the other fish showed symptoms, but today one of my zebra danios has a bit of a curve in his spine so I'm worried they're different symptoms of the same disease. I separated the two fish with symptoms as soon as I noticed that it could be spreading, but I don't have a hospital tank so I've just hung them in the normal tank -- hopefully it'll be very temporary.

The harlequin was behaving perfectly normally, including eating and the areas of the tank he stays in. The danio is swimming strangely because of the shape of his spine but I think he ate normally this morning.

Volume and Frequency of water changes: 5-10 L per week

Chemical Additives or Media in your tank: Nothing chemical

Tank inhabitants: 4 harlequin rasboras, 1 scissortail rasbora, 2 praecox rainbows, 4 zebra danios, 4 baby bristlenose plecos (temporary home) and 1 zebra loach

Recent additions to your tank (living or decoration): The zebra loach was added about 4 months ago, same with the baby plecos. Yesterday I put in a piece of bogwood from the local fish shop after having soaked and rinsed it.

Exposure to chemicals: None that I know of

Digital photo (include if possible): http://i134.photobucket.com/albums/q114/biensurmacherie/DSCF3022.jpg

http://i134.photobucket.com/albums/q114/biensurmacherie/DSCF3021.jpg

http://i134.photobucket.com/albums/q114/biensurmacherie/DSCF3013.jpg



Thanks for your help!
 
Parameters normal

please can you expand on this? What are your exact readings for ammonia and nitrite?

curved spines in zebra danios can be quite common, either with age or as a side effect to swim bladder issues. I'm not familiar with the lesions you describe though, but hopefully someone else can help. They will need your readings above first though.
 

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