I have been think a lot about something to convert after awile my 75 to a semi aggressive to aggressive but I don't want and predatory or fish eating fish cause I don't want to deal with feeders and that they won't exceed my 75 cause I don't have money to upgrade or the room so I would like to know.I'm asking this cause I know nothing of monsterfish or aggress - semi aggress im ore community fish so please list all the possibilitys if it helps I live in Wisconsin so I know I can't get that much 
