This is my newly formed pair of umbee. i've had this male for a few months now after i originally gave it to a mate to grow out for a while. it's pushing 7.5-8" and is starting to develop some nice trailers. the female is only about 6 months old and is dead on 4". i've grown her out from 1.5" baby 
they've been divided in a 6' standard for about a month now and seemed to interact quite well. the male doesn't seem like he wants to kill her at all. i've now put them in a 5'x2.5'x2' along with a 6" midas, 3.5" female convict, 3.5" super red texas x kamalau flowerhorn and a 8.5" gold spot gibbicep
here's the result...
The Male
The Female
The Pair Bonding
they've been divided in a 6' standard for about a month now and seemed to interact quite well. the male doesn't seem like he wants to kill her at all. i've now put them in a 5'x2.5'x2' along with a 6" midas, 3.5" female convict, 3.5" super red texas x kamalau flowerhorn and a 8.5" gold spot gibbicep
here's the result...
The Male
The Female
The Pair Bonding
