They're not exactly Bettas, but Paradise Gouramis spawn the same way. At least that's the conventional wisdom. Well, right here this evening by the computer, I saw some very unusual behavior in the paradise pair right after they had a brine shrimp supper. They were lip locking worse than angelfish, and it seemed like they couldn't let go. Opening the hood finally stopped it, but now their lips don't look very good. This should be one heck of a spawn if it happens. Has anybody here ever seen lip locking rituals in bubble nest builders?
Keeping aquarium fish is a constant learning experience for sure.