$25 NLHE 6-max: Not nuts flush draw vs fish

Stacks:
UTG ($20.03)
UTG+1 ($18.93)
CO ($29.35)
BTN ($19.06)
SB ($65.70)
Hero ($14.74)

Pre-Flop: ($0.35, 6 players) Hero is BB Q:diamond: J:diamond:
1 fold, UTG+1 calls $0.25, 3 folds, Hero raises to $1, UTG+1 calls $0.75

Flop: 9:diamond: 6:diamond: 8:spade: ($2.10, 2 players)
Hero bets $2.10, UTG+1 calls $2.10

Turn: 2:diamond: ($6.30, 2 players)
Hero bets $3.15, UTG+1 raises to $6.50, Hero goes all-in $8.49, UTG+1 calls $5.14

River: 4:spade: ($26.43, 2 players, 1 all-in)

Final Pot: $54.56
UTG+1 shows
3:diamond: A:diamond:
Hero shows
Q:diamond: J:diamond:

UTG+1 wins $28.13 (net +$13.39)

Hero lost $14.74

Standard cooler.

What about bet sizing? Is it standart?

No, the flop bet is large, and your pre flop raise is small. When do you ever c-bet for full pot on that board when you have a weak or 1 pair hand?