How would you play this hand differently? Would you consider raising preflop to isolate what is almost certainly a weak player on the btn?

PokerStars - $0.05 NL - Holdem - 7 players
Hand converted by PokerTracker 4

CO: 165.4 BB (VPIP: 18.63, PFR: 14.71, 3Bet Preflop: 4.24, Hands: 309)
BTN: 109.4 BB (VPIP: 19.65, PFR: 11.79, 3Bet Preflop: 5.21, Hands: 231)
SB: 108.2 BB (VPIP: 8.60, PFR: 8.60, 3Bet Preflop: 5.26, Hands: 94)
Hero (BB): 116.4 BB
UTG: 101.4 BB (VPIP: 15.52, PFR: 12.07, 3Bet Preflop: 10.00, Hands: 59)
UTG+1: 54.4 BB (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 5)
MP: 95 BB (VPIP: 28.09, PFR: 15.73, 3Bet Preflop: 7.32, Hands: 90)

SB posts SB 0.4 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has T Q

fold, UTG+1 raises to 2 BB, fold, fold, BTN raises to 3 BB, fold, Hero calls 2 BB, UTG+1 calls 1 BB

Flop: (9.4 BB, 3 players) 3 Q 5
Hero checks, UTG+1 bets 5.4 BB, fold, Hero calls 5.4 BB

Turn: (20.2 BB, 2 players) A
Hero checks, UTG+1 bets 11.6 BB, Hero calls 11.6 BB

River: (43.4 BB, 2 players) T
Hero checks, UTG+1 bets 12.4 BB, Hero calls 12.4 BB

NH.

I see no reason to raise pre with a hand that plays well multiway. In addition, you are dominated by UTG+1s raise/calling range. The odds you have are very nice, getting a small discount for beeing in the BB.
Flop and turn are standard. You could maybe x/raise the turn if UTG+1 has a wide 2barrel range, but it's situational. Readless I would play it like you.
His river bet sizing is weird, but I don't see worse hands calling you if you x/r. So x/c is nice. WP. Take a note of his hand to remember if he sizes so small for thin value or not.

Thanks Strep. Villain had FD 45cc. So this is something you would take a note of? something like { sml bet river = value } maybe? How would you use this in the future? I guess you need to be sure that he is not balancing these sort of river bets with bluffs also before you can really use it against him ?

I don't think this was a pure value bet. Looks more like "maybe I am ahead but I am scared to loose against a higher flush", because your line looks like a draw and his line not.

If he think you have a A or two pair, he maybe bets higher.
But normally you will raise this at the turn, at this drawheavy board.

Yeah I like to know which betting patterns villain uses. Especially if it's not standard like a quarter pot bet with a heavy value hand. Knowking this, I will be less inclined to bluff raising the river (not recommended at 5nl anyways) or raising the river for thin value vs. a weak bet. But this wouldn't change the way to play this exact hand. I'm always calling river for those odds unless I have a super accurate read.

Hmm, you might be right. But if his line doesn't look like a draw, shouldn't he bet bigger because it's hard to put him on the flush ? Hero has a ton of non-flush hands ! It would be interesting to know if he's bluffing with those sizings too, and if he's betting wider than only the flushes on the river. If you are always betting so small, you give your opponents the opportunity of losing the minimum when they are beat and your bluffs aren't going to be very successful... The only way it could make sense is to bet this same sizing with a large linear range on the river, including all 2 pairs and more.

Yes and no.
Yes if he think Hero has no flush and just TP, Two Pair hands and no if he is scared hero has a bigger flush.
I think a small bet for value, if he thinks Hero has TP/Two Pair, makes no sense in this spot, because like you said, its hard to put him on the flush (UTG+1 OR hands include also more TP/PP Hands)

Jep, this small bets makes sense If I think Villain (in this case Hero) just call a thin bet and not more, because he looks like a medium strong hand or to block oop (against a Villain, who doesn´t know how to exploit block bets).
Don't like this as a bluff to imitate a value hand (maybe in higher limits, where are a lot of strong thinking players it is a brilliant play).

But generally I have the same thoughts like you.