I’ve been out of the hobby for about 20 years and just starting to get back into it. I just started to do some research on the Senegal Bichir and really want to have two of them in a 75 gal tank they are being sold at about an inch and a half to two inches long. I also would like to add maybe two Jack Dempsey which are about the same size currently. Is this possible or am I only asking for trouble? The water and temperature parameters are almost the same. If the Dempsey wouldn’t work out what would be a good addition?