Really anything big/fast enough to not get eaten but not big or mean enough to eat it. They are pretty crappy hunters and can usually only get sick stuff. Gouramis, tetras, top dwelling fish, dwarf cichlids, barbs, and silver dollars are all good options. Mine tries to get my severum, but even if she grabs on he whips her off. Armored cats also fare well.
Females don’t get as large and are less of a threat.
