Here we go again: MIs, Take III

[Aquattro]

Originally Posted by Samw

That's a good sign. It means they are now outgrowing your tank in the sense that they are defining territory and the large one has marked the whole tank as its territory. Actually, I'm only surprised they didn't start fighting sooner. The fishes must have gained quite a lot of mass since you first bought them. No surprise to me.

Agreed, I thought this would happen sooner. I guess it went long enough I thought it might last, but that's being naive, I suppose.
They have gotten a lot bigger, the big one being too large for my tank really. He's gone to a 6' tank now, so hopefully he continues to do well.