Starter but no buddles in fermenter

I made a starter with harvested yeast that wasn't even a month old and after 36-48 hours on the stirplate there was lots of healthy yeast in the flask but after brewing yesterday I pitched the yeast around 3pm and I went to check the air lock today and no activity. Weird part is my first batch of with the vails of white labs was fermenting within 12 hours and everything I read about starters says that fermentation kicks up pretty quick. Could I be over thinking is or could something be wrong

 

Several factors play a part in the process, i.e. temperature, yeast pitched, O.G., amount of yeast pitched, etc. Have you looked at the top of your wort? Is there a leak in your bucket where the gas is going besides your air lock? What temperature is your wort? Have you moved it to a warmer location? A beer I brewed on Saturday did not show any signs of fermentation at 62 degrees. Warmed it up to 63-64, bubbling like crazy. Try these suggestions, see what happens.

Hope this helps.

 

Pitch temp was 72 ferm chamber is set for 69. Oh is approx 1.070

 

Oh and it was American ale blend yeast

 

False alarm I pulled the airlock and saw that it had a health Kaursen put it back on and 5 mins later healthy bubbling. Now I'm probably gonna need a blow off tube setup

 

Good deal, no worries. I still fret over each beer I make, trying to give the yeast the best life possible! Haha! I am using the dry "West Coast" ale strain from Danstar. I was amazed that a degree or two in temp makes a huge difference for the yeast.