How to do water changes for Bettas

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cascadia
Posts: 3
Joined: Wed Aug 03, 2022 10:12 am

How to do water changes for Bettas

Post by cascadia »

I've been doing weekly water changes for my betta, but he seems stressed afterward. How often do you guys change the water, and what's your method to keep them calm?
rancher
Posts: 1
Joined: Thu Oct 10, 2024 6:34 pm

Re: How to do water changes for Bettas

Post by rancher »

I change 25% of the water every week in my 5-gallon tank. Use a siphon to avoid disturbing the substrate, and always match the new water's temp and pH to the tank. Stress coat helps too.
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silktwist
Posts: 5
Joined: Fri Jan 13, 2023 8:00 pm

Re: How to do water changes for Bettas

Post by silktwist »

rancher wrote: Sat May 24, 2025 8:06 pm I change 25% of the water every week in my 5-gallon tank. Use a siphon to avoid disturbing the substrate, and always match the new water's temp and pH to the tank. Stress coat helps too.
Yep, this is the way. I also drip acclimate the new water over 30 mins to avoid shock. My boy flares less now.
evoix
Posts: 1
Joined: Thu Oct 10, 2024 8:57 pm

Re: How to do water changes for Bettas

Post by evoix »

I do 20% changes twice a week in my 10-gallon. My betta's super active afterward, but I've got a sponge filter so the flow's gentle. Maybe your filter's too strong?
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fisherly
Posts: 3
Joined: Thu Oct 10, 2024 3:09 am

Re: How to do water changes for Bettas

Post by fisherly »

Try adding Indian almond leaves to the tank. They release tannins that calm bettas. I do 30% changes biweekly in my 3-gallon, and my fish barely notices.
VitalMind22
Posts: 3
Joined: Sun Oct 20, 2024 6:39 pm

Re: How to do water changes for Bettas

Post by VitalMind22 »

Ngl, I used to slack on water changes, and my dude got fin rot. Now I'm strict with 25% weekly, and his fins are growing back. Lesson learned, lol.
spance
Posts: 8
Joined: Wed Mar 23, 2022 11:27 pm

Re: How to do water changes for Bettas

Post by spance »

VitalMind22 wrote: Sun May 25, 2025 12:35 am Ngl, I used to slack on water changes, and my dude got fin rot. Now I'm strict with 25% weekly, and his fins are growing back. Lesson learned, lol.
Same here. Skipped a week once, and my girl got lethargic. Now I test ammonia weekly too, just in case.
knighter
Posts: 1
Joined: Thu Oct 10, 2024 6:30 pm

Re: How to do water changes for Bettas

Post by knighter »

Yo, how do y'all deal with tap water? Mine's got chlorine, and even with conditioner, my betta acts weird after changes.
MorningBreeze
Posts: 3
Joined: Thu Oct 10, 2024 9:37 pm

Re: How to do water changes for Bettas

Post by MorningBreeze »

knighter wrote: Sun May 25, 2025 3:02 am Yo, how do y'all deal with tap water? Mine's got chlorine, and even with conditioner, my betta acts weird after changes.
Let the water sit for 24 hrs before adding it. Or use RO water if your tap's sketchy.
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Korvix
Posts: 5
Joined: Thu Oct 10, 2024 3:40 am

Re: How to do water changes for Bettas

Post by Korvix »

I use Seachem Prime for my tap water. Works like a charm, and my betta's chill after changes. Also, keep the lights off for an hour post-change.
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