air stones

Hi everybody, my DWC plants are getting bigger and the starter/ amazon air stones aren't going to do it. Here's my DWC setup: 2 - 5 gallon buckets 2 - 14 gallon totes, 2 plants each I have my air pump bases covered. I found a solid brand I like. I thought about these they're 4x2 inches...

I'm going to be in the 5th week of flowering when the electricty goes off for 10 hours next week. How do I keep her alive with no air pump to keep the bubbles flowing?!?! will she be alright for 10 hours in the dark without an air pump?

is it ok to scratch the blue stuff off to create more bubbles? not all of it but like to take a knife down the middle or something like that?