I want to do a species tank of one of these synspilu, fenestratus and hartwegi.. I have owned all 3 but I need help in choosing. With the fenestratus I have never seen a fully matured adult male same as with hartwegi males. Anyone have any pics of these fully matured? I would usually sell before they reached full maturaty except for the synspilus becuase I have kept those for years. Any help and input would be appreciated.