I prob should have made c-bet bigger. but what do I do on turn?

PokerStars - $3+$0.30|15/30 NL (9 max) - Holdem - 9 players
Hand converted by PokerTracker 3

Hero (MP): 2,955.00
MP+1: 2,805.00
LP: 3,000.00
CO: 3,180.00
BTN: 3,745.00
SB: 8,968.00
BB: 5,745.00
UTG: 3,260.00
UTG+1: 2,980.00

SB posts SB 15.00, BB posts BB 30.00

Pre Flop: (45.00) Hero has A Q

fold, UTG+1 calls 30.00, Hero raises to 120.00, fold, fold, CO calls 120.00, fold, fold, fold, UTG+1 calls 90.00

Flop: (405.00, 3 players) K 6 4
UTG+1 checks, Hero bets 200.00, CO calls 200.00, UTG+1 calls 200.00

Turn: (1005.00, 3 players) 6
UTG+1 checks, [color=red]Hero ?

Entirely dependant on stacks and stage of tournament of course, and could vary greatly, but in this particular hand:

CB on the flop is ok in my opinion - maybe make it just more than half pot as I feel some player psychologically feel the need to float half pot bets with hands like A high (which is what you want really if you can decipher it - but can put you in tricky spots if you are oop).

Thinking on it more, it really depends on if you are comfortable barrelling 2 and 3 times though. If you just like to CB the flop and preserve chips in later streets, then I make the flop CB bigger.

If you are capable of barreling 2 or 3 times, half pot bet is fine imo, that leaves a little more chips for turn where opponants are most likely to fold floating hands or straight draws (imo) so fire about 585-665 on the turn. That bet should get any 6 or unflushing straight draws off imo due to the stacks. It will also put UTG+1 on the back foot for the river and he will most likely check if he calls turn bet. Any K would still most likely call your turn bet so in that instance you are beat and would give up the river unless you hit an A (in which case check call imo) or you hit your spade - which I would bet out on if UTG+1 checks obviously.