White, chewed looking tails?

[Dow]

It's very odd. I have a single guppy that has lived through any and everything, including two newts, constantly trying to eat her. Yet, even as she still acts perfectly fine, something is eating at her tail and she's the only one that's got it. It looks like the scales are almost not there, anymore at the base and the tail itself looks like it's been nibbled. I don't have any pics because I don't have a good camera.

The water is perfectly stable, what it's always been. It's a ten gallon, lightly planted tank with 2 newts, a bichir and some sort of eel with a 10g HOB filter. I've now lost a 2 bettas to what I've been told is a simple parasitic fungus that could be cured with Clout. I've tried clout, melafix, Malachite green, 10% water changes every day, sifting the gravel, changing the filter. Nothing will make this go away.
Help?

[imagirlgeek]

Try treating with an antibiotic that covers fin/tail rot. It's a bacterial infection, most likely.

From personal experience, there is no such thing as a simple parasite, or a simple fungus. I have no idea what a 'parasitic fungus' is. Sometimes, with bacterial infections, there is a white cottony growth on the wound, but it's secondary to the bacteria, so you really need to fight the infection.

With a bacterial infection, they are more likely to be slow, listless, hang out alone, lose their appetite, stuff like that.
With a parasitic infection (external), they are more likely to dart around the tank, shake, rub on things, pretty much just act pretty spastic.
With a fungus, well, it is really rare to have a true fungus. But there are anti-fungal meds to use at the same time you are treating underlying problems.

Good luck!

Oh! One more thing...cooler temps will slow down the bacteria while you medicate. Between 70F and 75F if you can.