How has your betta fish's appearance changed?N/A
How has your betta fish's behavior changed?N/A
I'm sorry - but not offering any detailed description, and refusing point blank to post a clear picture of your sick fish isn't helping anyone to help him, you know?
If you're changing a 1 gallon bowl once week only, he is probably sick from ammonia build-up. This is what happens when the bowl fills up with fish waste when it's not changed often enough, and helps other diseases to set in, like fin rot (the holes in his tail).
Why are you giving him ich guard? For the holes in his tail? It's a completely different illness..
I would recommend, on the little bit of information I have to go on here, that you stop the ich guard (unless he actually has ich???
) and give him a week of clean
warm water (change it 100% every 2nd day) to a/ help him over the medication and b/ see if more frequent water changes help his fins heal up. Then, if the holes don't look like they're clearing up, start the Fungus Cure according to directions.
It's important to match water temperature on each water change. Make sure he isn't shocked by new water/different temperatures by floating him in his cup in the bowl for 10-15 mins, adding a little new water to the old (in the cup with him) every 5 mins.