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[Troy F]

Andrew, I hear you. If light intensity does turn out to be the primary cause of the "brighter" pigmentation then I don't think there'd be any decision to make. I'd give up a little growth for the nicer colours. The context of the information I was "quoting" [img]images/smiles/icon_wink.gif[/img] from was more for achieving maximum growth at the best returns (least energy). Really I've added nothing useful to the conversation. Just added a poorly conceived point about the differences between nature and the captive system. Must shut-up now.