Welcome
Betta Fish Care Starts Here.
Bettas are one of the most misunderstood fish in the hobby. They get sold in cups, kept in bowls, and fed whatever’s cheapest on the shelf — and then people wonder why they only live a couple months.
KnowBetta exists to change that, with clear betta care guides and honest answers to the questions you’re actually Googling.
Recent Articles
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Velvet in Betta Fish: What It Is, How to Spot It, and How to Treat It
Velvet is a parasitic infection that coats your betta in a fine gold dust. It’s sneaky, fast-moving, and one of the most dangerous diseases in the hobby. Here’s how to catch it early and treat it.
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Fin Rot in Betta Fish: Causes, Symptoms, and Treatment
Is your betta’s fin looking ragged? Learn how to identify, treat, and prevent fin rot. Our guide covers water quality fixes and safe medication options.
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Betta Tank Cleaning & Maintenance: How to Do Water Changes and How Often
Betta tank cleaning is mostly about consistency, not deep scrubbing. This guide explains how often to change betta fish water, how much to replace, how to clean the tank safely, and what maintenance mistakes to avoid.
About the Author
I’m Annie, the creator of KnowBetta. I’ve been keeping freshwater fish most of my life and bettas have always been my favorite. KnowBetta is the fish-keeping resource I wanted to see in the world: clear, well-researched, and written by someone who genuinely wants to help.