I have 2 leopard bush fish I bought both in december 2017 one was a bith larger than the other over the year the smaller one has over taken the other one. The one that has grown quicker is about 4.5 inches the other one bearly 3 iches I have seen some pushing around from the bigger one but nothing serious when I had them in the grow out tank the one that is now smaller was more dominant and always ate first but now in the bigger tank things seemed to have changed