What Is The Smallest Tank For A Betta?

im wondering the world has said many different things about betta size tank some say half a gallon some say 10 gallon.but what do you say?

There is a mistaken belief that in the wild bettas live in puddles so they only need a tiny tank. Common sense should tell us this isn't true - if they lived in puddles, how would males meet females?

Wild bettas live in wide, shallow water like rice paddies. These can dry out during the dry season leaving fish trapped in large puddles until it rains again. I don't know how many of these fish make it through to the rains but it is this that makes so many people think they live in puddles permanently.

5 American gallons (20 litres) is generally considered to be the minimum tank size for a betta. And although it is possible to keep bettas in unfiltered tanks, this needs 50% daily water changes. With a filter, only once a week water changes are needed. Bettas also need the water slightly warmer than most tropical fish so unless the room the tank is in is at tropical temps, they also need a heater.

I did wonder. Bettas don't sound like the kind of fish you are interested in 

but i do love them.they are one of the few fish that can come in EVERY color that i know of.

The one problem with the Edge is that some bettas can't find that square of surface to breathe air - just in case you don't know, labyrinth fish need to breathe air to fill the labyrinth organ. The solution is to have the water level a bit lower so there is an air gap beneath the top glass. The downside to that is that it spoils the look of the tank in some people's eyes.

oh and also i would buy a normal rectangular tank so he will have the surface volume like sue said.

I've heard 10 galls quite often for bettas, though people then say that's too big for just a betta, what else can I put in there. I've always used 25 litre tanks, which are 6.6 US galls. My current tank is slightly larger, but only a by a litre or two.