Your Ultimate Guide to Betta Fish Care
They deserve better than a cup.
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, research-backed betta fish care guides and honest answers to the questions you’re actually Googling.
New to bettas? Start here.
Work through these in order and you’ll go from “thinking about it” to a fully cycled tank that’s actually ready for a fish.
01
Is a Betta Right for Me?
What bettas cost, what they need, what you’re signing up for.
02
What Size Tank Do Bettas Need?
Why 5 gallons is the real minimum.
03
How to Set Up a Betta Tank
Every piece of equipment, and how it goes together.
04
How to Cycle Your Betta Tank
The nitrogen cycle, explained for humans rather than chemists.
Already brought the fish home? Most people do. Start at step four and work backwards.
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.