nut flush draw flop

Como debi haber jugado, x/c flopp o esta bien apostar? y el size?

Hand converted with online PokerStrategy.com hand converter:

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$0.01/$0.02 No-Limit Hold'em (9 handed)

Known players:
[tg]MP1$0.36:///////;MP2 (Hero)$2.00:///////;MP3$2.03:///////;CO$2.04:///////;BU$0.66:///////;SB$1.97:///////;BB$3.78:///////;UTG1$1.76:///////;UTG2$3.65:///////;[/tg]

Preflop: Hero is MP2 with A:c, J:d.
UTG1 calls $0.02, UTG2 folds, MP1 calls $0.02, Hero raises to $0.12, MP3 folds, CO calls $0.12, 3 folds, UTG1 calls $0.10, MP1 folds.

Flop: ($0.41) 6:c, Q:c, 2:c (3 players)
UTG1 checks, Hero bets $0.20, CO calls $0.20, UTG1 folds.

Turn: ($0.81) 7:s (2 players)
Hero checks, CO bets $0.64, Hero folds, CO gets uncalled bet back.

Final Pot: $0.81.