Our fish is about 5" long and tank is 220 gallons. By the way, tank can't be so dirty bacause we change water 70% per week . It will be interesting to see how he'll share tank with two oscars and three uarus.
becuase cichlids have charecter some jag's can be gentle or Mildly Aggressive but most of them are Extremely Aggressive and will try to kill anything that will compit with them