All In - Trip Aces vs. Potential Flush

OK, so here's the deal - I'm lookin at trip Aces against a potential flush draw. Looking back at this hand, these are the conclusions I came up with:

1) I should have raised Player 3's $.25 bet after the flop to avoid Player 3 hitting his flush.

2) Probably not wise to call his all-in.

3) I probably should have lost this hand.

Normally, I would have raised the post-flop bet but didn't this time. Your thoughts?

$25 NL Hold'em
Seat 3 is the button
Total number of players : 4
Seat 10: ME ( $16.2 )
Seat 6: PLAYER 3 ( $17.6 )
Seat 5: PLAYER 1 ( $27.3 )
Seat 3: PLAYER 2 ( $10.45 )
PLAYER 3 posts small blind [$0.1].
ME posts big blind [$0.25].
** Dealing down cards **
Dealt to ME [ 5s Ac ]
PLAYER 2 folds.
PLAYER 1 folds.
PLAYER 3 calls [$0.15].
ME checks.
** Dealing Flop ** [ 8h, As, Ah ]
PLAYER 3 bets [$0.25].
ME calls [$0.25].
** Dealing Turn ** [ 6h ]
PLAYER 3 bets [$2].
ME raises [$6].
PLAYER 3 is all-In [$15.1]
ME is all-In [$9.7]
** Dealing River ** [ 6c ]
ME shows [ 5s, Ac ] a full house, Aces full of sixes.
PLAYER 3 shows [ 9h, Th ] a flush, ace high.
PLAYER 3 wins $1.4 from side pot #1 with a flush, ace high.
ME wins $30.8 from the main pot with a full house, Aces full of sixes.

with 4 players and two folding ahead of you raise this preflop against the BB, get some money in the pot.

sure it's nice to slow play or minbet trip A's, but often it's better to just take it down when there's str8 or flush draws out there.

he gives you every indication that he made the flush and you should drop it on the turn.