Ok, so basically, the title sums up my question. I've read a bunch of recipes the past few days, some say let sit for 5 hours, others 2, some just say between 15-30 min. I'm definitely confused! None of these have said to poach the fish, either, so it's not a question of some using 'pre-cooked' fish.
I'm making this for dinner tonight and if i need 5 hrs, i'll put it together at lunch and then head back to work. Otherwise, I'll put it together after work and it'll just sit for 1-2 hrs.