aeration foam wont drop?

first time ive seen this.

-brewed a milk stout
-used a wine degasser to aerate. I give a 1min burst, let it settle, clean a little, return and hit for another minute. i do this at least 3-5 times.
-1.25 l starter

but the last time i hit the wort with the degasser there was a lot of foam, figured it was nothing, yeast was pitched and put on the airlock. few hours later went back to look on it, the foam has not subsided.

-there is a cake on the bottom, looks mostly just trub but its really dark to its hard to tell.
-cant imagine its fermenting this fast.
-didnt change anything but have never seen the foam not drop back in and act like this?

i can upload a pic, but anyone have thoughts?
im assuming any foam is oxygen anyhow so this cant be bad?
should i remove the airlock and use tinfoil or the foam block i use for starters?
should i just rdwhahb?

thanks

 

relax. don't worry. have a home brew.

 

^^^^^ That's some good advice right there!

 

I average 3-5" of foam after aerating which hangs on for a while. A couple hours maybe. Maybe the starter vs wort temp at pitch got a healthy start to go from foam to krausen?

 

the more sugars in the wort can cause the aeration foam to stick around longer.