Chasing fish money to the extreme...

UTG+1, MP1, BB all have VPIP 60+,passive and can't mostly let go of even king high. CO seems to be the only player that has any clue.
Post flop, what would you do?

Party Poker 0.5/1 Hold'em (9 handed) converter

Preflop= Hero is SB with 8=club=, 6=club=.
1 fold, UTG+1 calls, MP1 calls, MP2 calls, 1 fold, CO calls, 1 fold, Hero completes, BB checks.

Flop= (6 SB) 4=spade=, J=club=, 3=club= (6 players)
Hero bets, BB calls, UTG+1 calls, MP1 calls, MP2 raises, CO calls, Hero 3-bets, BB calls, UTG+1 calls, MP1 calls, MP2 calls, CO calls.

Turn= (12 BB) 5=spade= (6 players)
Hero bets, BB calls, UTG+1 calls, MP1 calls, MP2 calls, CO calls.

River= (18 BB) 8=spade= (6 players)
Hero bets, BB folds, UTG+1 folds, MP1 calls, MP2 calls, CO calls.

Final Pot= 22 BB

If CO is only one with a clue and he is in the pot with so many other calling stations, you have to be very concerned. I definitely don't three-bet a weak flush draw. I don't bet the draw on the turn either. I check-call looking for pot odds and hoping to set up a check-raise on the river if the bet comes from my left trapping the field for extra bets if I hit the flush. You can't assume your pair of eights is good with CO still in the pot and so many calling stations who could be entering the pot with anything. Someone with Jx is a real possibility here. If they aren't the folding type, there's no reason to bet MP with a weak kicker with six players in at the river. You're not going to get them to fold.

From your reads and observing one hand history, this looks like one juicy table. My house needs to be on fire before I get up from this one.

It was a very juicy table and I did get some money of them in the end. But this one went to CO wtih AJo. He and MP+2 was the only ones with a pair. I guess I got a bit carried away.

At least one lesson learned even, if the table is full of fishes you can't win hands with CRAP!

Always make sure to use your reads. If someone you know to be a decent player is still in the hand, be thinking about what it is that he could be holding and act/adjust accordingly to what he does.