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Thanks! They didn't look like fish to me, but I wondered what they might be.

That's what I was thinking, but like I said, I'm relatively new to all this. Thanks! :)

I knew that was the case in those two :)

Are these air bubbles? They're all at the same upward angle. Any ideas on the stacked arcs on the left side?
https://i.imgur.com/oP0uEWW.png

Here's a downview/traditional combo of the stack:...