Had been running well on this table and now the loose-passive players are now folding lots.

Still, is this a bad line?

Prima Poker skin
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $2.45
UTG+1: $5.35
CO: $7.17
Button: $3.65
SB: $1.95
Hero: $15.25

Pre-flop: (6 players) Hero is BB with T 6
UTG raises to $0.2, 2 folds, Button calls, SB folds, Hero calls.

Flop: 6 J A ($0.65, 3 players)
Hero checks, UTG bets $0.4, Button calls, Hero raises to $1.6, UTG calls, Button folds.

Turn: 4 ($4.25, 2 players)
Hero checks, UTG checks.

River: 2 ($4.25, 2 players)
Hero bets $3.5, UTG calls all-in $0.65.
Uncalled bets: $2.85 returned to Hero.

Hadn't noticed that it was the even-shorter stack who had called... my bad...

Results:
Final pot: $5.55