I'm with Sarah on this one, especially if you get the larger growing varieties of Silver Dollars. Five large Silver dollars and a large Jag in a 75 isn't going to work. An adult Jag needs more room. Try a Midas or a Green Terror with some other schooling fish that won't get too big.Sarah88;4658218;4658218 said:yeah in a bigger tank that would be fine but a 75g is definitely too small, you could maybe keep a female jag by itself in the 75g, but really if i had a 75g and wanted a nice robust wet pet i would go for a midas cichlid, those guys are great and personable and would be good in that size tank, a male jag needs a 120g tank IMO to be comfortable (could do a pair in that size tank as well, if its the 5ft version, i wouldnt try a pair in anything less than 5ft)