Stuck lager ferment

[Spurtrax]

I have a stuck fermentation in my Maibock. I made a 2 liter starter but it has just been slow since I pitched it and is now piddle-dicking around at about 1.033 from 1.070.

What are some options. Can I ramp up the temp or will that give me funky esters? Could I add some suger to wake the yeast up? Is it screwed and my best bet is just to add some brett? If I do add brett can I go ahead and keg it or should I keep it in a carboy?

Thanks

[jwatkins56550]

I think you are good to raise it up. How long has it been fermenting? I say wait it out before you go the brett route.

If after you raise it up and it doesn't do anything, make another starter and add it at high krausen

[Spurtrax]

Its has been in the carboy for about three weeks now. I pitched at 44 and it krausened some but not super vigiourus, then after about a week I raised it up to 50 and it did the same thing, kicked up a little and then kind of stalled out, so I raised it to 55 for a week and again it picked up a little but then slowed down after a few days. How high can I raise it without getting bad results?