$.25 flopped set on a one-colored board. Push it?

[MickChecker]

Party Poker No-Limit Hold'em, $ BB (9 handed)

BB ($37.60) was 18/8/2.
UTG ($4.75)
UTG+1 ($12.35)
MP1 ($26.15)
MP2 ($16.66)
MP3 ($10)
Hero ($25.95)
Button ($23.17)
SB ($18.89)

Preflop: Hero is CO with 9/images/graemlins/heart.gif, 9/images/graemlins/spade.gif. MP3 posts a blind of $0.25. SB posts a blind of $0.10.
<font color="#666666">4 folds</font>, MP3 (poster) checks, Hero calls $0.25, SB (poster) completes, BB checks.

Flop: ($1) 9/images/graemlins/club.gif, K/images/graemlins/club.gif, 7/images/graemlins/club.gif <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">BB bets $0.5</font>, MP3 folds, <font color="#CC3333">Hero raises to $2</font>, SB folds, BB calls $1.50.

Turn: ($5) 8/images/graemlins/heart.gif <font color="#0000FF">(3 players)</font>
BB checks, Hero ??

If he had the flush, why should he bet the flop? And why would he check the turn?
Is it right to push here? Maybe a bet between 3$ and 5$?

[kolotoure]

Pushing is really bad just bet as much as you think he will with the A

[MickChecker]

So maybe a bet of 2$?

And why is pushing bad?

[nyc999]

Raise pf.

I raise flop to about $2.50-$3, but your raise is okay.

Definitely bet the turn, around $3-$4. It gives the villain incorrect odds to call if drawing and provides value if villain holds 2-pr, etc.

If villain has flush, fill up on the river.

[EscapePlan9]

Bet turn about $4. I'm not fearing a flush.

[wingchunflush]

raise opf
bet the turn as well $3.50 to $4