$1000 eff. Fishy LAG opens MP1 to $20. Yes, he likes to open really small like that and he opens really often. He can have as weak as 76o here. I make it $80 OTB with QQ. SB makes it $200, folds to me. SB is a very good recreational player, thinking player and is aware of button/blinds dynamics. I think he is capable of being light there but it's maybe only 15% of his range. The rest is value. The very small sizing of the 4bet has me confused.

What do we do?