50nl: What does this min raise mean?

Read:
58 hands and villain is running 100/8/2.2

How should we proceed on the turn? I am often faced with these min raises from fish and I am never sure if this is the nuts, pot control or air. What should I do here?
$0.25/$0.5 No Limit Holdem
9 Players


Stacks:
UTG ($46.95)
Hero ($50.90)
MP1 ($50)
MP2 ($17.05)
MP3 ($25)
CO ($11.10)
BTN ($10)
SB ($11.05)
BB ($44.75)

Pre-Flop: ($0.75, 9 players) Hero is UTG+1 :qd: :ah:
1 fold, Hero raises to $2, 6 folds, BB calls $1.50

Flop: :5h: :qs: :7d: ($4.25, 2 players)
BB checks, Hero bets $3, BB calls $3

Turn: :7h: ($10.25, 2 players)
BB checks, Hero bets $7, BB raises to $14, $7 to Hero ($38.9)?

meh, the spot is gross.
Bet flop bigger (although i bet $3 here too, but i think that it's a leak).

Turn, think about hands that he's likely to have. Calling is ok, but be prepared to fold to a decent river bet. Jamming is just silly. Folding seems too nitty, but may in fact be the best play against more often trips than a weaker queen.

turn minraise from fish often means business. I probably call ip and reevaluate on the river.

just call/call pretty much any river. He has a 7 a fair amount but also air, weaker queens and maybe some draws.