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My betta tank water: What are the ideal levels and how to fix them?

Updated On September 23rd, 2025

Hello! I was wondering if you could help me out. The internet doesn’t help out to much and the bottle of the test strips doesn’t tell me the ideal amount some of these should be at. So if you could help me out here I would really appreciate it. And please tell me the amount it should be at and if it isn’t ideal how to improve it please and thank you. GH• (General Hardness) 30 KH• (Carbonate Hardness) 40 pH• 7.0/7.5 NO2• 0 NO3• 0 I am testing the tank for a betta if that makes it vary.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on October 16th, 2019

Bettas are hardy andbquitebtolerant of a wide range of water conditions. The key is to avoid rapid swings in any parameters. Ideal chemistry for a betta would be a pH between 6.5 and 7, GH (aka dH) below 25, a KH above 4.5 (80ppm) ammonia and nitrites at 0 and nitrites at 20ppm or less. Water temp should range between 78 F and 80 F.

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