Sorry I've never owned an arowana, what do u mean by contours?
A tank that is at least 3ft wide
Leis can get up over 3feet. Personally I would never buy one again without plans for a 4foot wide tank at some point. They seem to get cramped easily with those rigid turns. I think a 40" wide tank could be a bare minimum for 2 or 3decades of proper lei growth, but would still recommend even more tank width for a comfortable turning radius someday down the line
Could I see a photo of a lei over 3 foot. I'm not doubting you I just would like to see one.
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