I have this one betta that for some reason darts around his vase. The vase is only temporary till I get a 10 gallon tank and divide it. I have no clue why my black betta is darting around like crazy, he hits the glass and the rocks, and then he stops. He does this about once a day or so, plus his tail is torn, his tail was fine two weeks ago. I been treating his tail but it's not getting any better. Someone please help me out. I have experience with bettas for a while but never had this happen to me.