Betta fish and water testing kits

The sub forum dedicated to one of the most incredible fish in our hobby. Betta ask your questions in here!
sailfinz
Posts: 3
Joined: Thu Oct 10, 2024 9:12 pm

Betta fish and water testing kits

Post by sailfinz »

What's the best water testing kit for bettas? I've been using strips but heard they're not super accurate. My tank's a 5 gallon with a sponge filter, and I do 25% changes weekly. Just wanna make sure I'm not missing anything.
Linxel
Posts: 6
Joined: Thu Oct 10, 2024 6:10 pm

Re: Betta fish and water testing kits

Post by Linxel »

I've had good luck with the API Master Kit. The strips can be sketchy, especially for nitrates. How often are you testing? I check mine every few days since my boy's in a planted 10 gallon with shrimp.
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silvy
Posts: 7
Joined: Wed May 10, 2023 5:45 pm

Re: Betta fish and water testing kits

Post by silvy »

Liquid tests are way more reliable. The API kit measures ammonia, nitrite, nitrate, and pH. Strips often miss low levels of ammonia, which is risky for bettas. What's your current ammonia reading?
floradot
Posts: 8
Joined: Thu Oct 10, 2024 4:16 pm

Re: Betta fish and water testing kits

Post by floradot »

sailfinz wrote: Fri Jun 27, 2025 5:37 pm What's the best water testing kit for bettas? I've been using strips but heard they're not super accurate. My tank's a 5 gallon with a sponge filter, and I do 25% changes weekly. Just wanna make sure I'm not missing anything.
Yep, strips are hit or miss. The API kit's a bit pricier but lasts forever. I test every water change in my 7.5 gallon, and it's saved me from a few mini cycles.
StarD
Posts: 6
Joined: Thu Oct 10, 2024 6:16 pm

Re: Betta fish and water testing kits

Post by StarD »

My local fish store swears by the Seachem Ammonia Alert badge. It's not a full kit, but it's a good backup. I still use the API kit weekly though.
DreamFox7
Posts: 2
Joined: Sat Jul 30, 2022 8:41 am

Re: Betta fish and water testing kits

Post by DreamFox7 »

The liquid kits are worth the investment. I've caught spikes early thanks to them. How's your betta acting? Any lethargy or clamped fins? That's usually my first clue something's off before I even test.
zagora
Posts: 3
Joined: Sat Oct 19, 2024 11:34 am

Re: Betta fish and water testing kits

Post by zagora »

I just got the Nutrafin kit. It's similar to API but cheaper. My betta's in a 6 gallon with driftwood, and the tannins mess with the pH strips. Liquid tests don't care about the color.
slayr
Posts: 8
Joined: Wed Oct 05, 2022 12:09 pm

Re: Betta fish and water testing kits

Post by slayr »

Linxel wrote: Fri Jun 27, 2025 6:30 pm I've had good luck with the API Master Kit. The strips can be sketchy, especially for nitrates. How often are you testing? I check mine every few days since my boy's in a planted 10 gallon with shrimp.
Same here. The nitrate test is a lifesaver. My tank's heavily planted, so I test every 3 days to keep things stable.
mintox
Posts: 4
Joined: Thu Oct 10, 2024 9:46 pm

Re: Betta fish and water testing kits

Post by mintox »

If you're gonna stick with strips, at least double-check with a liquid test now and then. I learned that the hard way when my betta got fin rot from undetected ammonia. Now I'm paranoid and test twice a week.
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zeno9
Posts: 77
Joined: Thu Jan 06, 2022 12:20 pm

Re: Betta fish and water testing kits

Post by zeno9 »

I use the API kit too. My betta's in a 3 gallon with a heater set to 80. The strips always said my pH was fine, but the liquid test showed it was way too high. Fixed it with some driftwood.
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