redstar8 said:
I have had them in the tank for about 3 weeks and they have developed that columnaris infection, do you have any reccommendations to treat it?
Rainbowfish are prone to fungus and can develop Fish TB if certain conditions are not met:
1. They sensitive to water. Nitrites, ammonia or high nitrates are a big no
2. They need fresh water, at least 50% once per week, better is twice per week
3. They need LOTS of O2
4. They need LOTS of swimming room
5. They need a proper school, very minimum of three. Six is best.
6. No stress. They will develop fungus if they are stressed.
If you correct the above that is how you can get rid of the fungus. Treating them with meds may make all of it or some of it go away. For a while.
However, those fish are sporting a fair amount of mouth threads and if you don't do something you might lose them. I've lost two rainbows to this type of thing, at the very beginning about a month after first got them and I didn't know better. They went downhill very fast.
My rainbow fish seem perfectly happy in my 20 gallon. Basically the whole front half is open for swimming, they swim around all day.
Your fish have fungus, they are not happy. Parkinson's can get pretty big, much too big for a 20g tank. Not only do you only have two, they are both males and they are in a small space. You'd better watch out for some fighting.
They *are* beautiful fish, but please get a bigger tank and more tankmates.
Roan