Need help for betta please

All, my daughter’s betta has been doing fine for months, but in the last week seems to have just unraveled before our eyes. I’ve been changing the water everyday and used almond leafs. I just don’t know what to do to get his fins to stop disintegrating. Much appreciation in advance.
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Tank

What is the water volume of the tank? 5 gallons
How long has the tank been running? Three months
Does it have a filter?yes
Does it have a heater?yes
What is the water temperature?78-79
What is the entire stocking of this tank? Just one betta(Please list all fish and inverts .)

Maintenance
How often do you change the water? Normally every two-three days but recently every day
How much of the water do you change?1/3
What do you use to treat your water? Seachem Prime
Do you vacuum the substrate or just the water? Alternate

*Parameters - Very Important
Did you cycle your tank before adding fish? When we moved to this bigger tank we used the old substrate and water so as much as possible
What do you use to test the water? API master test kit
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.

Ammonia: .25 (it always says this)
Nitrite: 0
Nitrate: 0
pH:7.4

Feeding
How often do you feed your fish? Twice a day
How much do you feed your fish? Three pellets each time
What brand of food do you feed your fish? New life spectrum betta mini pellets
Do you feed frozen or freeze-dried foods? Not usually

Illness & Symptoms
How long have you had this fish? 7 months
How long ago did you first notice these symptoms? He’s been having fin issues almost from the start, but frequent water changes help control it. In the past week, it’s been drastic though.
In a few words, can you explain the symptoms? He hardly has fins or tail left, somewhat lethargic but he eats fine and does try to swim around. But he stays at the top of the tank all the time now
Have you started any treatment for the illness? Water changes almond leaf
Was your fish physically ill or injured upon purchase? No
How has its behavior and appearance changed, if at all?
See above
Explain your emergency situation in detail.
He has always been a very small fish. In past week, his fins and tail seem to be disappearing before our eyes. He’s staying at the top of the tank. He’s still happy looking but he doesn’t look healthy at all. He is a white betta and often looks translucent by the way. You can see right through him!




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It sounds like your tank isn’t cycled so that may be the cause. You could try adding in aquarium salt to help promote healing.

 

How often do you change the filter media?

 

How often do you change the filter media?

He has a sponge filter which I swish around in tank water about every two Or three weeks. There are also some ceramic rings that I don’t change at all. For a long time I even had the old filter from the old tank in there with the sponge filter.

 

Well your filtration sounds good. It sounds like you are doing everything good. I don't have much experience with Bettas yet to assist in the finrot, Im sorry.

 

I would use aquarium salt to see if that helps (1 tablespoon per gallon added slowly so as not to shock the fish) or do aquarium salt baths (follow instructions on the label). Continue with the parital daily changes. Also, if you want, you can add some Seachem Stress guard. It is an anitseptic, and promotes healing.

Keep using the Indian almond leaves. In your pictures, I don't see any tinted water. Maybe you can try boiling them to bring out the tannins, and add the brown water to your tank after it cools. You can also use roobios tea, but only if it is organic, and decaffeinated with no flavors added.

Test your water parameters every other day or so to make sure the ammonia doesn't spike. If you do see something off, Prime is the best at blocking the toxicity of ammonia and nitrites.

If none of this works, then break out with the meds. API has fin and body cure. Seachem has a few anti-biotics that might help. (go to their web site - seachem laboratories - look under the medications tab for info, on all meds). Maracyn-2 also fights fin rot.

I hope that he gets well! He is a sweet-looking little guy!