River Value Bet

[GTSamIAm]

Villain is a super fish. I've seen him showdown crap hands routinely. Is there ever any value in betting the river here?

Party Poker 1/2 Hold'em (7 handed) converter

Preflop: Hero is MP1 with J[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">3 folds</font>, SB calls, <font color="#666666">1 fold</font>.

Flop: (5 SB) 7[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

Turn: (3.50 BB) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

River: (5.50 BB) 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Final Pot: 5.50 BB

[deception5]

It's more important to know if he's passive or aggressive here.

Also will he fold the river when he misses or call with black 22 for example? The more hands he'll call with the more you should be willing to put in another bet.