Housing
What size is your tank? 5 gallons
What temperature is your tank? 77'C
Does your tank have a filter? yes
Does your tank have an air stone or other type of aeration? No
Is your tank heated? No
What tank mates does your betta fish live with? Alone
Food
What type of food do you feed your betta fish? pellets, flakes and growth immunity food
How often do you feed your betta fish? Two times a day and fasting him one day in a week
Maintenance
How often do you perform a water change? every week
What percentage of the water do you change when you perform a water change? 100%
What type of additives do you add to the water when you perform a water change? water conditioner
Symptoms and Treatment
How has your betta fish's appearance changed? whitish edges in tail
How has your betta fish's behavior changed? not at all... he is as active as he was before
When did you start noticing the symptoms? 3 days ago
Have you started treating your fish? If so, how? not yet

Does your fish have any history of being ill? no
How old is your fish (approximately)? Approx. 5 months….
I know that he is having symptoms of fin rot and i dont know where to start the treatment from. I have read fin rot related post, the first treatment should be aquarium salt, yesterday i ran to every pet store and fish store to find it but no one in my area has ever heard of aquarium salt

then i searched every market to find simple rock salt or kosher salt,,,, but cant find it any where..... but i saw a salt and it was without iodine but with 0.0006% soda

should i use that salt as treatment?
please anyone help me save my spikey's fins.....
(and yes, sorry about my english

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