I've got a 1000 mL erlenmeyer flask, but I'm concerned it may be too small for 1.064 OG. I don't have a stir plate, but I have an aquarium pump and a 1/2 gallon growler.
Should I ditch the flask and make a bigger starter with the growler? Should I worry about using the aquarium pump (either for just 30 minutes at the start, or maybe more frequently)?
My plan of attack is to make a 1L starter in the growler, aerate for 30 minutes, and then shake it up a few times per day. I'm hoping that will give me enough head space and aeration.
Thanks for the advice.