Hey,

BU is standard REG. He opens 50%.
BB is loose FISH.

My standard 3b vs. open 50% is something like 20% linear range. Maybe more.I don't have calling range on SB. But when is FISH on BB it is better to have calling range (maybe) ehm (I think). What is your play in this situation?

Do you have calling range? What do you call? Whole your range? Wider range? Make sense to call QQ+?

Is it at all a good idea to have a calling range in these positions due to the fish?

Thanks!