$25 PL - call this river bet?

[Alchemist]

I've played lots of limit O8 but I'm still a novice at PL. BB has seemed like a decent player so far. SB is very bad and makes some really terrible calls.


Full Tilt Poker
Pot Limit Omaha Hi/Lo Ring game
Blinds: $0.10/$0.25
5 players
Converter

Seat 1: UTG ($14.80)
Seat 2: Hero ($31.50)
Seat 3: Button ($22.65)
Seat 5: SB ($8.70)
Seat 6: BB ($54.50)

Pre-flop: (5 players) Hero is CO with A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/heart.gif[/img]
UTG folds, Hero calls, Button folds, SB calls, BB checks.

Flop: 4[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/spade.gif[/img] ($0.75, 3 players)
<font color="#cc0000">SB bets $0.75</font>, BB calls, Hero calls.

Turn: K[img]/images/graemlins/spade.gif[/img] ($3, 3 players)
SB checks, BB checks, <font color="#cc0000">Hero bets $1.5</font>, SB calls, BB calls.

River: 8[img]/images/graemlins/spade.gif[/img] ($7.5, 3 players)
SB checks, <font color="#cc0000">BB bets $7.5</font>, Hero ?

edited to show stack sizes