Betta fish and water quality health issues

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aurorin
Posts: 6
Joined: Thu Oct 10, 2024 7:04 pm

Betta fish and water quality health issues

Post by aurorin »

My betta's been acting sluggish lately, and I'm worried it's the water. I test weekly, 0 ammonia, 0 nitrite, 5 nitrate, but he's still not his usual self. Tank's a 5-gallon with a sponge filter, heated to 78F. Any ideas what's up?
fishtail_9
Posts: 5
Joined: Wed Jul 24, 2024 3:34 pm

Re: Betta fish and water quality health issues

Post by fishtail_9 »

Could be the nitrate level. Even though 5 isn't crazy high, some bettas are super sensitive. I'd try upping water changes to twice a week for a bit, see if that perks him up. Also, what's your pH sitting at?
Finleye
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Joined: Sun Sep 15, 2024 6:01 pm

Re: Betta fish and water quality health issues

Post by Finleye »

fishtail_9 wrote: Tue Aug 05, 2025 2:23 pm Could be the nitrate level. Even though 5 isn't crazy high, some bettas are super sensitive. I'd try upping water changes to twice a week for a bit, see if that perks him up. Also, what's your pH sitting at?
Agreed on the nitrates. Also, check for any recent changes in decor or substrate. Sometimes new stuff leaches weird chemicals. What conditioner are you using?
muddy
Posts: 5
Joined: Thu Oct 10, 2024 10:27 pm

Re: Betta fish and water quality health issues

Post by muddy »

Mine did the same thing last month, turned out the heater was sketchy and temps were swinging. Maybe double-check your heater's consistency? Also, how old is your guy? Older fish sometimes just chill more.
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RivieraX
Posts: 13
Joined: Sat Jul 06, 2024 4:01 pm

Re: Betta fish and water quality health issues

Post by RivieraX »

Y'all ever think it's just the fish being lazy? Mine acts like a couch potato some days, then goes nuts the next. But yeah, water changes never hurt.
aurorin
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Joined: Thu Oct 10, 2024 7:04 pm

Re: Betta fish and water quality health issues

Post by aurorin »

Finleye wrote: Tue Aug 05, 2025 5:27 pm
fishtail_9 wrote: Tue Aug 05, 2025 2:23 pm Could be the nitrate level. Even though 5 isn't crazy high, some bettas are super sensitive. I'd try upping water changes to twice a week for a bit, see if that perks him up. Also, what's your pH sitting at?
Agreed on the nitrates. Also, check for any recent changes in decor or substrate. Sometimes new stuff leaches weird chemicals. What conditioner are you using?
Using Seachem Prime, pH is steady at 7.2. No new decor, but I did switch to a different brand of pellets last week. Maybe that's it?
fishtail_9
Posts: 5
Joined: Wed Jul 24, 2024 3:34 pm

Re: Betta fish and water quality health issues

Post by fishtail_9 »

Oh, food changes can totally mess with them! Try soaking the pellets before feeding, sometimes the new stuff's harder to digest. Also, maybe toss in some frozen brine shrimp as a treat, see if he's more into that.
Finleye
Posts: 3
Joined: Sun Sep 15, 2024 6:01 pm

Re: Betta fish and water quality health issues

Post by Finleye »

aurorin wrote: Tue Aug 05, 2025 9:26 pm
Finleye wrote: Tue Aug 05, 2025 5:27 pm
fishtail_9 wrote: Tue Aug 05, 2025 2:23 pm Could be the nitrate level. Even though 5 isn't crazy high, some bettas are super sensitive. I'd try upping water changes to twice a week for a bit, see if that perks him up. Also, what's your pH sitting at?
Agreed on the nitrates. Also, check for any recent changes in decor or substrate. Sometimes new stuff leaches weird chemicals. What conditioner are you using?
Using Seachem Prime, pH is steady at 7.2. No new decor, but I did switch to a different brand of pellets last week. Maybe that's it?
Bingo. Some pellets expand way more than others in their stomachs. Stick to the old brand or pre-soak like fishtail_9 said. Also, keep an eye on his poop, weird colors mean trouble.
muddy
Posts: 5
Joined: Thu Oct 10, 2024 10:27 pm

Re: Betta fish and water quality health issues

Post by muddy »

Mine's a picky eater too. One week he's all about bloodworms, next week he's like 'nope, give me flakes.' Bettas are just drama queens sometimes.
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RivieraX
Posts: 13
Joined: Sat Jul 06, 2024 4:01 pm

Re: Betta fish and water quality health issues

Post by RivieraX »

For real, they've got more mood swings than my ex. But yeah, if the water's good and he's eating, probably just a phase.
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