nejsux said:
It could just be that the two aren't compatible, or simply the gourami's way of experimenting.
Keep a close eye, it should eventually / hopefully stop !!
What do you mean by the two aren't compatible? The dwarfs, or the plants? The odd thing is that The two male dwarf gouramis are the most peaceful fish in the tank. Every now and then they'll feel each other at feeding time, but there's no pecking or chasing goin on. I don't think the behavior is destructive really, it just seemed odd that he'd be building a nest with no females present. And no bubbles, just peat moss. I replanted everything that was ripped out, and secured it better so that shouldn't be much of a problem anymore. The most agressive fish in my tank is definately the male lavander gourami (not a dwarf) and he mostly picks on his woman, but he has yet to build a nest. He just chases her around and feels her. He chases the dwarfs sometimes but usually only if they're fighting for worms. Everyone in my tank is pretty peaceful, but it's only a few months old. BTW, everything I read said to keep gouramis in groups. I would get females if I could, but I have not ever seen any at LFS, only regular gourami females. Maybe they aren't as sought after because they aren't so brightly colored.
Another interesting fact: The lavander gouramis change color often. The male is more prominent and gets darker then the female, and then the next week, thhey both mellow and become the same color. But certain times, maybe 2x a month, they both get a lot darker coloration. I will try to post pics of the 2 different extremes.