Hi! Sounds like you're on the right track for treating your guy's ich, but I would "tweak" some of what you're doing, so the treatment is more effective. First, I'll discuss the ich, then we'll tackle how to treat the fin rot.
There's a great sticky in this forum about treating ich. (Click for the link.
) It says:
"You can treat Ick either conservatively or with medication. Ick is a parasite. Because ick is contagious, it is preferable to treat the whole tank when one fish is found to have it. Ick is temperature sensitive: Leave your betta in the community tank and raise temperature to 85 F. Then you can choose to treat with salt or medication. Conservative: Add 1 tsp/gal Aquarium Salt 3 times, 12 hours apart so that you end up with 3 times the normal concentration. Perform daily 100% water changes to remove fallen parasites before they can reproduce. Replace the water with the right amount of salt. Do not continue this treatment for more than 14 days. If it fails or you do not want to use salt, treat with Jungle’s Parasite Clear, API Super Ick Cure, or Kordon Rid Ich Plus. If your betta lives in a jar/bowl, then it can be difficult to heat the water. There are heaters for smaller containers, but you can also float the quarantine container in a larger heated tank during treatment. Do a full water change every day and add an appropriate amount of medication to the water. "
So you want to:
1) Raise the temperature in your tank to 85F.
2) Increase the aquarium salt dosage to 3 teaspoons per gallon.
(As ANHEL123 pointed out, the package directions give "therapeutic dosages" but you need a higher dosage right now to treat the parasite.)
3) Do daily 100% water changes, using 3 teaspoons aquarium salt per gallon
, in order to remove all fallen parasites.
Do NOT use aquarium salt for more than 14 days maxiumum!
Aquarium salt contains sodium, which stresses the kidneys. Using too much, or for too long a period of time can cause fluid retention, bloating, buoyancy issues, and eventually, kidney failure!
If at any time, it looks like he's starting to become bloated, or having trouble with his buoyancy, stop the aquarium salt. Let us know if this happens, as there are ways to treat it quickly and safely. However, aquarium salt is excellent at treating external issues like ich and fin rot.
Ich is caused by a parasite called (Ichthyophthirius multifiliis
). Fin rot, on the other hand, is usually caused by a gram negative bacterial infection. The good news is that aquarium salt has an antimicrobial effect, and will hopefully be enough to treat the rot, too. If it doesn't, you can use an antibiotic that targets gram negative bacteria, but I don't think you need it yet. Hopefully, the aquarium salt and frequent water changes will treat the rot.