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msesassi 03-29-2012 11:47 AM

HELP! unknown disease - lost 2 fish - columanaris?? mouth fungus?? DISTRESSING IMAGES
Right, where to begin?
My biggest tank has been up and running for around 10 months. It is approx 800l including the sump.
I had my green severum for approx 2 years.
One day I noticed a white, what I assumed to be cotton wool fungus near his mouth.

He was eating and acting normally.

I took photos in to a couple of local fish shops and was advised to treat with methelyne blue as had already recently treated with the green 'waterlife' brand medicine Myxazin.

A few days later he looked like this and couple days after this photo he was dead.
I've never seen anything so awful looking on a fish, he got weak so quickly and its progression was so rapid.
12th feb
15th feb the day before we lost him
We have 4 tanks in total, and this one never seems 'quite right'
Although we get 0 ammonia 0 nitrite minimal amount of nitrate PH 7.5 high KH high GH but this is the same as in all my tanks.

I'm sure we must not have it set up correctly, we have an outflow pipe going in to the first section of the sump which flows into the second section, which contains sponges, rocks and carbon inside tights. Then it goes over the bubble trap and into the final section where we have a pond pimp pumping it up and back into the opposite end of the tank.
Have we missed something out? It's never been crystal clear like my other tanks are (200l)
As I say it's 6ft long and we do a 25% water change every week or occasionally every 2 weeks.

Today we lost another fish to what seemed like columnaris or mouth fungus. It was a little 2" Uaru chiclid. noticed white patch yesterday, he was dead this morning :-( this is 6 weeks or so since we lost poor sevy :-(

I'm very concerned for my other fish, which are as follows,
2 red spotted severum
3 severums (rotkeil or green - now 3-4" fry from another tank from a mother rotkeil father gold severum)
1 opaline gourami
8 albino cories
2 other cories
1 green phantom plec
1 galaxy plec
1 black fin shark catfish
1 gold severum
2 Uaru
2 clown loaches

Please help us!
I don't know what else to try as there was 6 weeks between the green severum passing on and the Uaru getting the same thing.
It is a calm placid tank, no bullying or stressing, and I feed them fresh veggies, bloodworm and good quality pellets and flakes.

msesassi 03-29-2012 03:31 PM

Anyone?? Please!
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jeaninel 03-30-2012 11:53 AM

Sorry to hear about your troubles. Columnaris can be very aggressive. I would treat with Furan 2 and increase water changes to 50%. Unfortunately, treating with antibiotics may compromise your beneficial bacteria colony so be sure to check your water parameters often and do extra water changes if needed. Good luck and I hope your tank recovers.

And welcome to the forum!

Romad 03-30-2012 12:13 PM

Ooooh.... that's nasty :( Sorry to hear about your fish losses.

Columnaris is a gram-negative bacteria so don't let anyone sell you any anti-fungal meds. I'm not saying that they will but if you go to any of the chain stores, they might try to sell you the wrong meds assuming it's fungal because of fuzzy appearance.

Don't forget to remove the charcoal from the filtration while you are medicating the tank.

Good luck to you in getting rid of the problem and keep us posted.

msesassi 03-31-2012 02:33 PM

I don't think it's easy to get antibiotics for fish here in the uk...
What does it look like to you?
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