We just had a HUGE scare! Homegrown terror and I got another new betta today (pics coming soon) and he fixed up the divider in our new 10 gal. Well, first Genghis got to the other side but luckily our newest one, Atilla, was still floating in his cup. We lowered the water level. Then a few minutes later Atilla got to the other side and they were in there together!!! AHHHHH!!! My fiancee walked in to check on them, ran back to our bedroom where I was, looked at me all wide eyed and ran back. I jumped up since I knew what was happening. At first we thought Gengy was gone because he was kind of floating so we separated them as fast as humanly possible. Fortunately, Gengy only suffered a few nips to his caudal fin. He had a nasty stress stripe also but is ok! So my fiancee checked the divider again and made sure it was flush with the sides of the tank. Both fishies ate their dinner ravenously and are fine now, but we were so scared!