[hagelito]

I didn't talk about BB's, I usually talk about fractions of the pot (except when talking about preflop raises).

I admit I didn't keep track of his stack and pot size because he didn't state it like that (I thought he had a bigger stack related to the pot). But say BB is 100, then he only had 1500 which I wasn't up to date with.

Then I would raise 400, the pot would then be 850 after his call. Then my flopbet would have been about 900 if I had a big stack, but I missed the stack size and in this occasion a 900 bet with only 1100 left is pointless and therefore all in is the right move in my mind.

Otherwise if I had a big stack in relation to the pot I would have bet 900 on the flop and the pot would have been 2650 after his call and then my continuation bet would have been 1200-1400. If he called/raised that bet I would probably be in trouble.