Originally Posted by txbettaowner
They have been together for a month now in the tank (1.5 gallon) and have had no problems. I have a smaller tank but it is a plastic one and it isn't lighted or have circuiting water. I do not have the room for a 3 gallon tank nor do I want to transport that home. 3 gallon tank costs a lot of money and I don't have that much money to spend. These two have no problems with each other. I have 3 plants and a corral looking thing that they can swim in and out of. They have room.
A 2 gallon kritter keeper at Petco is roughly $10, a 3g keeper is roughly $12... so not too expensive.
Can buy another 1.5g and place it elsewhere.
They don't need moving water, in fact they prefer no moving water.
I am not trying to sound rude, but it may come off that way.. so I am going to answer bluntly. I just want to help..
Betta fish - Siamese FIGHTING fish - not just males that are aggressive. Females can be equally aggressive. Some can be passive. But it's in their nature, their instinct to be alone, to be aggressive and that is something that you can't take away. It has only been a month.. even the best set up for a sorority can and often do, have deaths due to aggression and it can happen at any time. Why there are guidelines posted around the forum about how to properly house multiple females for the best chance at keeping them healthy and alive.
A 1.5 gallon simply can not take care of the amount of bio load those fish are placing into the tank. Bettas may have smaller bio loads, but it does add up in a small tank with multiple fish. It is generally ideal to never have multiple fish in a tank smaller than 3-4 gallons simply because of the bio load.. filter or no filter, it's not a healthy idea. So asking for them to survive 11 days in something that should be cleaned about 5 times in that span of time (with what you have in there) is a bit much.
You say they have enough room to swim - a 1.5 gallon is perfect for a SINGLE betta, preferably male as males tend not to be as active as females... but it's not just the amount of swimming space, it's how the fish view the size.. a fish that swims as much as a female betta, along with being forced into a small space with another female will soon feel trapped. It happens in larger tanks when they are over stocked. It will happen in your tank.
Pretty much in comparison - you have 2 pit bulls in a space the size of a refrigerator that are walking in their own filth, and becoming claustrophobic as time goes on.. but they are fine now. Tomorrow? Who knows.. just the wrong signal, wrong movement from one female will set off the other female. It's a ticking time bomb.
But.. you don't have to follow anyone's advice. They are your fish, and if you want to risk it, then it's your choice. But there are cheap alternatives to house them in. Make sure they have a heater at least....