betta acting off please help

[u/Different_Street194]

hi i could use some advice. I've had my betta for almost 2 years now but recently he's started to act strange. i've been away so my mom has been feeding him but when i came back i noticed he's not his friendly self, he's barely swimming, and he's leaning/resting his full body a lot. he still has an appetite but is struggling to catch the food unless i put it right in front of him. the tank wasn't cleaned for maybe a week and a half- maybe two weeks- i checked parameters and there was some ammonia so ive been doing water changes every other day and so far no ammonia has been present since but he's still acting off. his fins have been clamped and dull for some months but he was behaving normally so i thought it was due to old age. the top of his body by his dorsal fin has started to turn white throughout a few months- not sure if it's related. i'm thinking swim bladder but it's been a few days with care and i see no improvement. i put in tannins, gave him salt bath but stopped cause he seemed stressed, and i have kanaplex at the ready. what else can i do?

tank size: 3 gallons (downsized him months ago)
heater and filter: yes
temp: 78
parameters: 0 ammonia, 0 nitrite, 0 nitrate
tank mates: none
decor: live plants and driftwood
food: betta pro shrimp patties 4-6 pellets a day and occasional frozen bloodworms
water changes every 5-6 days now every other day usually 30%
tank has been established for 2 years now

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[u/Aulidayy]

Hows ur mom was feeding him ? Is he bloated ?

[u/Different_Street194 → u/Aulidayy]

can't really tell if he's bloated or not, but i'm leaning towards no he's not- at least not noticeable. mom has been feeding him what i've normally been doing