NL 50 Flopped nut flush, how is my line/bet sizing?

[toxzen]

UTG 47/18/5 over 80 like to min raise pre flop
17/3.5/3.5 over 400

Called on flop cause I wanted to keep as many players in as possible. How does my raise on turn look? Should I be betting a little less, like 20?

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 9 Players
LeggoPoker Hand History Converter


MP1: $51.45
MP2: $6.15
Hero (CO): $49.50
BTN: $58.10
SB: $30.75
BB: $57.10
UTG: $76.95
UTG+1: $43.75
UTG+2: $54.75

Pre-Flop: A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
<font color="red">UTG raises to $1</font>, UTG+1 folds, UTG+2 calls $1, MP1 calls $1, MP2 folds, Hero calls $1, 2 folds, BB calls $0.50

Flop: ($5.25) 2[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img] (5 Players)
BB checks, <font color="red">UTG bets $2.50</font>, UTG+2 folds, MP1 calls $2.50, Hero calls $2.50, BB folds

Turn: ($12.75) 2[img]/images/graemlins/diamond.gif[/img] (3 Players)
<font color="red">UTG bets $6</font>, MP1 folds, <font color="red">Hero raises to $25</font>, UTG folds

Results: $24.75 Pot ($1.20 Rake)
Hero mucked A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] and WON $23.55 (+$14.05 NET)