AP .25/.50 - turn bet less than expected, what to do?

[alex-star]

UTG is a huge fish, but if he has a Q - he is not folding. So I am checking the flop to induce either a bluff, or some weak bet. Now here comes what's clearly a weak block bet. How much can I bet here?


Absolute Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
8 players
Converter

Stack sizes:
UTG: $26.10
UTG+1: $191.95
MP1: $17.35
MP2: $59.35
Hero: $29.80
Button: $21.10
SB: $43.15
BB: $95.40

Pre-flop: (8 players) Hero is CO with A[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
UTG calls, UTG+1 folds, MP1 calls, MP2 folds, <font color="#cc0000">Hero raises to $3</font>, 3 folds, UTG calls, MP1 folds.

Flop: J[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/club.gif[/img] ($7.25, 2 players)
UTG checks, Hero checks.

Turn: 3[img]/images/graemlins/club.gif[/img] ($7.25, 2 players)
<font color="#cc0000">UTG bets $1</font>, Hero ??