TT OOP in weird spot vs. mega-fish ($200NL)

[ua1176]

$200NL 6-max @ FT

UTG TAG regular raises to $7. 55/20/1 UTG+ calls. Button calls. i call in the SB w/ TT.

flop: 553
pot: $30

check, fishy-boy bets $26. only i call. he started hand w/ $300 and i cover.

turn: 2, putting a heart draw out there
pot: $82

check, fishy-boy bets $55. his turn aggression is low and he doesnt like to bet in general. but he's also a mega-fish and i can't imagine him playing trips this fast.

what do we do here SSNL?