They are all in a 125 gal tank and the funny thing is that the O's are just guarding the eggs by blocking them into the corner they are in. The other fish seem to be interested but other than that none of them are trying for the caviar delecasy. I have been waiting for a long time for this so I am really excited that it happened. I probably won't keep the new oscars so when they are big enough and if you are in the chicago area and want some oscars let me know.