3.5$ TT vs fish

SB is fish. We have no info on BU as I understand. So...

Questions:

What do you think sb's range is for donking out here? (answer 65,47,88,99,A7 + sometimes sets + occasionally AA)
What do we want to acheive with our raise? (we want him to call with his worse hands)
What is your plan if you raise and BU ships? (Fold, TT no good there in a vacuum).

So, we want a size that:
1. lets us get away if BU has a set
2. gets value from SB's worse w/o isolating against just his very strong hands

225-250 seems great for this. As played we almost raise the pot which isn't necessary as there are barely any draws.

Now, if he's going broke with A7/88/99 here and some (few) draws our decision vs the 3b is pretty easy - we ship.

However, w/out reads this line: mindonk, 3b from fish is usually pretty strong.

That's another reason for making our raise smaller - we are less committed and have more options as a result. Vs anyone half decent i'd fold.

With your info i prolly sigh call and make a note.