>>39610640Each berry type has its own water cycle. No resource for this, you have to check yourself for the berry you're trying to farm. I can tell you that Leppa is 10h and Liechi is between 14.5 and 15, never bothered to narrow it down.
Yes, it's very profitable (roughly 5k per 3 days per plant for me right now, so with 300 plants total on my farming alts it's 1.5m), but needs some GTLing.