You can get the recipe in artaeum for certain, possibly also in the pyandonian bottles. Or you could buy the psijic satchels unopened to get them in a guild store or guild auction. Fishing is the best way, on your own, and Artaeum has only ocean spots, which makes it easy to pick bait (only worms). Furthermore, there's a purple recipe, also bind on pickup, in some of the satchels. Note, once you've gotten both recipes, it's probably better to sell your satchels unopened, because once you peek in there, the recipe, at least, is bound to your account.
SneakyBo, ExSO_Gold, Demure Dragon Dealings
(note, several guilds auction off satchels and bottles in their weekly auctions. I know for a fact that SneakyBo does, and imagine it's true of a lot of them).