Trips Played Too Slow?

ME: [6h 6d]
ME posts the small blind of $0.25
bstarr04 posts the big blind of $0.50
nofoldem nic calls $0.50
ME calls $0.25

FLOP: [6s Jd Td]
ME bets $1.50
bstarr04 calls $1.50
(I'm thinking he has high card)

TURN: [As]
ME bets $4
bstarr04 calls $4
(did he catch 2 pr?)

RIVER: [4s]
ME bets $5
bstarr04 raises to $10
(I'm thinking he can't be on flush draw, because there was only one on flop)
ME calls $5

bstarr04 shows a flush, Ace high

Did I not bet my initial trips high enough?

Played it fine.

I think you slowed played the small pair pre-flop.
Only three ppl to play, 2 blinds one field caller, and you were last to act.
Why didn’t you raise it?
Got to defend your blind.
I’m tempted to raise in that situation just with suited connectors!
Good time to bluff if necessary.
I would have raised to attempt to knock out BB and see if field caller was for real.
Heck, he didn’t try to challenge the blinds, I am assuming he has a chit hand.
I mostly error toward blinds for holding chit hands.
If they did call your raise, Pot would have been bigger.
Then I would have bet Pot or Greater on the flop.
Gauge the reaction from that action.

What was he holding with that ACE?
Ace and paint I’m guessing, T, 9, possible.
Anything lower, that only confirms that wasn't a strong enough bet on that FLOP!