Originally Posted by fishy friend2
That's what I thought too some one on another forum said that they had one and the fish were flaring for about 30 minutes then just went and did there thing and left each other alone
I wouldn't use a clear divider. I use white mesh, that is definitely see-through, but I double it up to where it is almost impossible to distinguish what can be seen on the other side. Every now and then my CT Betta will dart out of his log to see what is on the other side, but unless my other Betta is right against the divider, he loses interest.
Using a clear divider, I would be afraid of them constantly hitting themselves against it in an attempt to chase/attack the other.