Weary & Wary

I am weary because we still have not gotten fish. The school year is just about up. What my teacher is going to give us permission slips so we can (maybe) get fish. I am wary because apparently, if too many fish of the same species of territorial fish are in the same tank they will apparently kill each other. (These tanks are the class tanks that have been here since before this class started.) For territorial fish you either need to get one or two of them in a big tank, or you need to get so many that they can't claim territory.