Cycling and treating for diseases

weswest

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Hi Everyone,

I am a newbie to fish keeping. I just got my first aquarium and I am already encounter some problems. This seemed to be the best forum I could find, so I was hoping someone could give me some advise.

My tank is currently 3 weeks old and is still cycling. It is a 29gal and has 6 mollies and 4 endlers in it. I have a master test kit and after about 2 weeks, both the ammonia and nitrate were undetectable so I decided to add a couple of guppies. I now know that this was a big mistake. :sad:

The mollies now seem to have fuzzy white spots on their mouths and the tips of their anal fins. I have been looking at the pinned articles and this seems to be a bacterial fungus infection. I went to a fish store and picked up some medication to treat fungus/bacteria, however the instructions say to take out the media out of my filter. This is where the real problem has begun.

Before I started to medicate, I checked the water quality and the ammonia had shot up to 1 ppm. (Nitrates were still undedectable). This seems to me like the tank is still cycling. The guppies have already all died off but one, and I am wondering what to do. Do I keep the media filter in the biowheel until the ammonia goes down and then start medicating, or do I leave it in and start medicating right away, or do I take the media out and start mediacating right away? The media filter is an activated carbon with organics that is supposed to be good for ammonia removal.

I know that this has turned into a very long winded first post, but any advise would be greatly appreciated. Thanks.
 
You have columnaris do you mean mouth fungus, only remove the black carbon from your filter leave everything else in place, the black carbon removes meds that's why you have to remove it.
 
Treat it fast, it soons spreads, good luck.
 

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