I have a Kissing Gourami and a Three-Spot Blue Gourami in a tank together... and my Blue finally decided to stand up against the Kissing! My KG has been relentlessly chasing the Blue at night time after feeding for as long as I can remember, and tonight, I looked over, and saw my Blue doing the same Kissing behavior with the KG! They were really going at it with the "kissing", and my Blue's color was a LOT darker and mottled. I had no idea that other Gouramis did this! Is this normal terretorial behavior for other gouramis?