My caribe's tail is is disappearing there are signs of fin rot like the fin is perfrect around the edges just the tail is getting smaller and small i dont what is casuing this i change the water regularly
If the fin is looking like toothpicks then yes you have either fin rot or ammonia burn or another fish picking at him. If its fin rot then you have to get medicine. Make sure to half dose it because piranhas don't have scales like other fish. I would also put salt in the tank as well. 1 tablespoon per every 5 gallons is the recommended dosage. The salt will help with the infection. If its ammonia burn then just do water changes and take water samples. If they are high you can buy this product called PRIME. It's a water conditioner with an emergency ammonia reducer dosage. It will break down the ammonia for you. Anything else just ask.
Gotta be careful with fin rot. It could be many things and the type fungus. Get some Maracyn at your LFS, the medicince has a pamplet with pictures of the type of fin rots. Find the one that looks like your problem and use the medicince. Salt, while good doesn't always work on a virul or bacterial infection.
Ok well yeah Maracyn works great but dont buy it from a LFS I get if from http://www.drsfostersmith.com at my LFS you get 8 tabs for 6 bucks, at fostersmith you get 100 tabs for 20 bucks. lol big difference, but my situation is different because I have a 240g, so it takes like 20 tabs per dose lol.
what all that salt in your fish tank - permanetly?
I have always added salt, but only 1 teaspoon per 3 gallons.
I also know you can add more for an intense salt bath to help cure illnesses, but only for a few mins (I can't remember how much salt for this) and this is easyer to do in a container, not the fish tank.
but the fish are O.K with 1 tabelspoon per 5 gallons permanintly?
I not add salt all the time. if there are fin nips I might add 1 tbl spoon per 10 gallons but when one of my reds showed signs of Ick, i added 1 tbl per 5 gallons and raised the temp a little and it was gone in a few days. I did catch it very early, he only had like 5-10 spots on his fin but it worked very well.