I currently have 4 3 inch xingu bass who are growing like wild fire in a 135 grow out tank along with a same size NTT datnoid.. could i add a arowana in with them into the grow out tank? They all are going into my 400 when it's done being built, but I figure if i grow them out all together it couldn't hurt. What is peoples opinions and if so what kind should I go with and size?