Hahah,
Not just rays..... Altum angels, geophagus, cats, plecos. But I need to focus on rays for the next little while.
Don't import Altum Angels until later in the season. Between late December and February, because that's their dry season. When the water levels go down it makes it easier to collect Altums (which the true Altums come from deeper water in the orinoco). Since the Altums are caught so much easier, it's must less stress on the fish, they do a lot better.
JMorash
That works with me too, by then I want to have an 180 gal for a group anyway.