ClownFish tale Deteriorating

[gizmo]

Hi,

I've had my 2 clown fishes for about 5 months now. I just notcied that one of them don't look so good. She just lying on the bottom and i noticed her tale fin is Deteriorating really badly..she has lost half of her tale and its gone kind white as well. The other clown fish seemed find. I have a very small tank and the only thing i keep in my tank is the 2 clown fish and a turbo snail. Do you guys have any idea on what is wrong with her?
Has she contacted some kind of disease? I change my water once every 2 weeks. My tank is only 26litres.
I buy my water from the fish store.
I'm kinda worried i dont think she gona live she looks pretty sick. I did a water test and everything is good. pls help

 

[blorkiemom]

Am I doing it right that that's 7 US gallons? That's probably not big enough for 2 clownfish . . . it sounds like fin rot, which is usually a water quality issue. When you say the water is good--can you post the exact results? I think people will be able to help you better.

Bacterial Fin Rot
Another disease brought on by poor water conditions, this bacterial infection is identified by a reddening of the base of the fins and anus. Fins are often found closed, frayed, or decaying. It's best to test the water to identify the stressor, and/or look for physical signs of stress. Once the stressor is removed and the disease is identified, treat with a medication for bacterial infections

http://www.versaquatics.com/saltwater_disease charts.htm

 

[MattP725]

I lost a clown to fin rot because my tank overcycled due to my overstockign when I first started in the hobby. Hard thing to combat but I would try some melafix or something of that nature and hope for the best. Try to keep the stress down. I would decrease the circulation to a minimal level personally to keep it from overworkign itself until it begins to improve.