my umbees grew alot slower than my dovii.
I am currently keeping both and they are 6-7"
Dovii- grows fast, aggressive from the start, begins to show colors early and not shy at all.
Umbee- grows slower, although not aggressive until larger, it is much more intolerant than the dovii as an adult. Very drab until larger, but when larger, much more coloration than the Dovii.
I think if you cannot wait, buy a Dovii. For those who can wait for an umbee, you will be rewarded.
Just what I gather from keeping both from fry til adult