I think you can get away with some theraps irregulare, tomocichla seiboldi(Rapps has the Tuba cousins) if you can find them. sorry to hear The umbee loss. grammodes will also work. Watch those neets. though they only get 6 in. they pack a punch the 2 will gang up on the larger maculicuada, & Festea. if the later enter their turf. so you'll have basicaly 4 territories until you add another fish.