Nut low flush on the turn but ths isn't PLO8

2/5, 9 handed, $1000 max buy.

With my newly grown agro cojones or you might think of them as frijoles when we get to the turn, I never limp, always folding or entering pre with a raise. UTG folds. I'm UTG+1 and make it $15 with 34hh. It's the first hand V has seen me play. I'm 60s white guy. I'm experimenting with LAG play today. I've killed it 6 times in a row at 1/2 by being LAG. This is only my second session at 2/5 doing the LAG experiment. Everyone first assumes my grey beard means I'm OMC. $1900+

V $700, 50ish white guy in CO, new to table, never seen him before and this is my reg room. He's seen a half dozen hands and folded all pre, except for one where he limp/folded the flop. He raises to $40 and I almost fold, but decide to see what happens thinking at least my hand is outside of whatever range he might have me on. Two handed to the flop.

Flop ($85) = Qh8c2h I check and V bets $40, surprisingly low for this game. I consider trying to buy it now with a semibluff but I 'm genuinely confused by his bet. Is it a weak CB or a strong beg for a call? And before you say it, a <50% PSB is a surprisingly small bet in this game. His range? I'm not sure but I'm going to default to it being fairly strong and that he is more OMC than not. Could be AQ, KK, AA, maybe 88 but I don't think he would have popped my pre bet with 88.

It took me a short tank to decide a call was best and I thought my reluctance to call better hid my FD.

Turn ($165) = 6h - I've got the micro flush with a gutter SFD. First to act. Do I bet here? Against a player that had seen me bluff and be very active, I would bet it in a heartbeat. If he thinks I'm OMC, he's going to fold. OTOH, another heart will at best kill the action and maybe take the pot from me. check? bet? maybe c/r?