I have a 65 gallon grow out tank stocked with a giant red tail gourami and about 5 clown loaches and three red tail botia's. My loaches and botia's have become more aggressive lately. I find them pestering my gourami. They follow him around and seem to be nipping his tail. Has anyone experienced this behavior from loaches or botia's before? I don't want them to destroy his fins or worst, cause an infection. Any info is appreciated. Thanks