Ideal water temperature for Bettas

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aquasage
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Joined: Thu Oct 10, 2024 2:24 am

Ideal water temperature for Bettas

Post by aquasage »

What's the best temp range for keeping bettas healthy long term? I've seen conflicting advice, some say 76-80F, others insist on 78-82F. My tank's at 78F now, but I'm not sure if it's ideal.
Duskwalker
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Joined: Thu Oct 10, 2024 4:04 pm

Re: Ideal water temperature for Bettas

Post by Duskwalker »

78-82F is the sweet spot. At 78F, they're fine, but warmer water (80-82F) boosts their metabolism and activity. Just avoid sudden swings—use a reliable heater like the Eheim Jager. What's your tank size and heater setup?
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mythics
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Re: Ideal water temperature for Bettas

Post by mythics »

I keep mine at 80F, and they're super active. But dude, if your heater's sketchy, it's gonna mess with the temp. Had one fail last winter, and my fish got super lethargic. Not fun.
whiskerix
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Joined: Thu Oct 10, 2024 8:50 pm

Re: Ideal water temperature for Bettas

Post by whiskerix »

Mine's at 79F with a 5-gallon tank and a preset heater. They seem happy, but I've noticed they flare more when the temp drops during water changes. How do you all handle that?
_reelking
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Joined: Thu Oct 10, 2024 8:22 pm

Re: Ideal water temperature for Bettas

Post by _reelking »

whiskerix wrote: Fri May 23, 2025 3:29 am Mine's at 79F with a 5-gallon tank and a preset heater. They seem happy, but I've noticed they flare more when the temp drops during water changes. How do you all handle that?
I float a bag of new water in the tank for 15 mins to match temps. Also, drip acclimation helps if you're paranoid. What's your water change routine?
SilverAce
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Joined: Thu Oct 10, 2024 6:15 pm

Re: Ideal water temperature for Bettas

Post by SilverAce »

76F here, but my place is warm. They're chill, no issues. Just watch for clamped fins—that's a sign they're too cold.
ocean_blue
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Joined: Thu Oct 10, 2024 5:15 pm

Re: Ideal water temperature for Bettas

Post by ocean_blue »

Yo, my betta vibes at 81F. He's a feisty lil guy, always building bubble nests. But if your room's drafty, bump it up a degree or two. Easy fix.
Zenoxar
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Joined: Thu Oct 10, 2024 7:46 pm

Re: Ideal water temperature for Bettas

Post by Zenoxar »

I've kept them at 77F for years with no problems. But if you're breeding, go warmer—82F for fry growth.
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aquasage
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Re: Ideal water temperature for Bettas

Post by aquasage »

Thanks for the tips, everyone. I'll bump it to 80F and monitor their behavior. Appreciate the heater recommendations too.
Duskwalker
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Joined: Thu Oct 10, 2024 4:04 pm

Re: Ideal water temperature for Bettas

Post by Duskwalker »

aquasage wrote: Fri May 23, 2025 11:18 am Thanks for the tips, everyone. I'll bump it to 80F and monitor their behavior. Appreciate the heater recommendations too.
Good call. Let us know how they adjust. Also, check your thermometer accuracy—some are way off.
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