Passive line from OOP TAG

Standard preflop - I isolated the BB who is a good TAG (15/8).
On the flop, would you cb? What's his range?
What would you do on the turn?

***** Pacific Hand History for Game 54260130 *****
$0.5/$1 Blinds No Limit Hold'em - *** 12 18 20:04:36 2007
Table De Konick (Real Money)
Seat 8 is the button
Total number of players : 6
Seat 2: milk1337 ( $132.64 )
Seat 5: 64ftw ( $123.04 )
Seat 6: nizzoa ( $80.3 )
Seat 7: zignal ( $46.71 )
Seat 8: DBLOSVN ( $126.15 )
Seat 9: pepon08 ( $201.05 )
pepon08 posts small blind [$0.5].
milk1337 posts big blind [$1].
** Dealing down cards **
Dealt to DBLOSVN [ Qh Ks ]
64ftw folds.
nizzoa folds.
zignal folds.
DBLOSVN raises [$4].
pepon08 calls [$3.5].
milk1337 folds.
** Dealing Flop ** [ 6d, Jh, 6c ]
pepon08 checks.
DBLOSVN bets [$7].
pepon08 calls [$7].
** Dealing Turn ** [ 6h ]
pepon08 checks.
DBLOSVN bets [$18].
pepon08 calls [$18].
** Dealing River ** [ 3s ]
pepon08 checks.
DBLOSVN checks.

Yeah its tricky, I almost always cbet but I would tend towards checking behind the turn more in these spots.
I used to bet repping a J or better full house, but if he called your c-bet he either has mid pocket pair or a jack (no draws) and he isn't folding often enough.

I just c/f turn, I don't think he's got something foldable enough of the time to make betting +EV.

yeah i'd just c/f the turn, I wouldn't cbet the flop all the time either.

check behind turn he doesnt fold here much.

check/fold the turn here..

Thanks guys. That's what I thought too - AFTER I'd double barreled. If I had spent some time thinking it through before the turn bet, with his stats he clearly has something, either a J or a mid pair (in fact it was AJ).

I really posted this to embarrass myself enough so that I wouldn't make the same mistake again.