I think Undersea Veggie Kimchis are really underpriced. They are flat 375 (for regular quality). For example, Bluecole is sold for 420 (regular) and 840 (Osmium), whereas Pickled Bluecole is sold for 645 (regular) and 1275 (Osmium) and, sadly, Bluecole Kimchi is downgraded to 375 (regular) and 700 (Osmium), as other undersea veggie kimchis, but they took much efforts to make.
I dunno if this was a bug or not. Because you maintain it since 1.1 Beta. The price was 350 (regular) in Beta, then you increased it since released to 375 (just for regular).
You should really adjust and rescale their prices because there is so much potential in underwater vegetables. Otherwise, there is no other reason to maintain cultivating underwater farm for profit, except for questline completion.
The only most profitable underwater crops for now is just Sea Spud. Hope you can balance underwater crops profitability. Thank you.