Cherry shrimp seem to do just fine under ice. Yesterday it was 18°F in the morning and a couple of inches of ice had formed on the cherry shrimp pond.
I went out and broke a hole through the ice to harvest some shrimp and I noticed there were definitely two kinds of ice.
One had formed with round trapped bubbles.
And the other kind had formed with long linear bubbles.
How does air get trapped in ice? And what causes one kind to form instead of the other?