I have jst bought 3 rainbow sharks for my communinty tank some people are sayn when thay grow up thay wil start fighting is it a gd idea to move them and wil this affect my other fish I have 1 female dwarf gourami 1 blue gourami 4 neon tetras 2 mollys 1 platy and 2 male kribs and a female krib and 1 catfish