imho if your looking into bigger fish and want more then one don't bother gettign a 75.. ( most the fish I got have outgrown their 75 in the first year, and I thought/was told it would be fine for life. ) look into 120wides or 180's. It may seem like a HUGE tank but realistically to keep more then a single larger fish you will need a tank of those gallons to keep them happy. get the biggest tank you have financials and space for.. in the long-run you and your fish will be much happier.