Betta community? Possible or impossible??? Let's see how it goes.
***Before starting I would like to say this topic is controversial and everyone here in the fish hobby has a different way of doing things, this is the way I'm doing it, let's see if it workes. Hope this journal/ experiment helps shed some light on betta aggression and companility***
Alright so let's start with the back story. I had aquire a 55 gallon tank for a South American cichlid community I had in mind. After choosing the wood and sand that would go into this tank i threw them in to sink the hard scape and get a good look how the tank would turn out. After letting it cycle of course, the fish I was looking for where not available. So I thought to place one of my betta girls in there just to give the tank life while I looked for my other fish.( note that things are still sinking and all wood in under rocks to keep them there)
She looked quite small, as you would imagine. So I added a few fry ( mostly females 1/2 an inch in length). Again they looked tiny compared to the water volume. Sooooooo I took a precarious step and added one full grown male ( the fancy koi). I stared at the tank for a while, bitting my nails as they got closer and closer. As you would expect he saw her and flared, rushing towards her and stopping in his tracks to flare and "wiggle", she flared back but no aggression was exchanged. This kept happening over and over, like it would normally in a spawning thank. My experience with cichlid pushed me to add more since aggression (if it would ever happen, and it will eventually) wouldn't concentrate on one fish but it would disperse any attacks.
So I added one more male.. the "resident" male seemed oblivious of the new male in his town. For a while no one notice each other until the koi male saw the tri-colored one. He came rushing and flaring (no attack) to the tri-colored, let's called him "big T" for the sake of this, he got the message and moved away.
This brings me to the present, Jan 3,2018 at 3:00 pm. They have been in there for about an hour or so. In my experience bettas flare for a while and then turn aggressive after measuring each other. This in fact happened. Both big T and the female have torn fins but this is normal since they are setting up their place in the tank. As of right now the koi male is the dominant one. Everyone avoids him and dashes away at a first sight of him. If things get too stressful I will defiantly cancel the experiment. I have hospital tanks available and ready for an emergency.
Oh I almost forgot, the fry flare amongst themself but not aggression, the adults chance them here and there but they hide in the woodwork and are quickly forgotten
3:26 pm everyone seemed to be chilled no fight no flares they are just spread out. Note two things, the number of fish in total is 7 (3 adults and 4 fry ) and this won't be a permanent thing, just as of right now, they will go back to their own tank once I get the new fish.