I had my JAde in a 55 for a long time, until it reached 7inches and passed away. The fish was one of the most comical fish i had and def had a GREAT personality... mine always swam completely vertical is though it was upright like a human.. never and i mean NEVEr swam horizontal! lived with a JAg with no issues and an Aro. THey seem to like to have places to perch on, and they def like plants and rocky hideaways. Mine ate whatever it found, worms, befheart, pellets, flakes, fish, FISH FROM FEEDER STICK!! i will get another one, but no jade will ever compare to my "goober"