I have a 55gal now and will be upgrading to a 75 (hopefully next month) anyway the fish I have now is 2 clowns and 1 engineer goby. (a few months ago had a heater burnt up and cooked all my corals). I will have soft corals and was wondering how many fish would go in a 75 gal tank? And what kind would be good, interesting to watch and be good tank mates? Looking for suggestions from everyone.