Ive gotten altums from various sources. Have kept wild caught and tank raised versions, with tank raised fish being far more consistent. Here are my recommendations:
shoreline-aquatics.com Thomas breeds and sells his own altums and provides excellent customer service.
tangledupincichlids.com Kevin imports and resells altums from a German breeder.
I've kept wild and tank raised altums in the same tank and you can't tell them apart. I suspect that there are European and Asian firms successfully breeding them and even some "wild caught" fish are actually tank raised.
At my age, everything is irritating.