DaviddivaD
Sleepless Grandpa
I've been swimming and diving for three hours now and I've yet to come across either or them. They are available now in the Northern Hemisphere, right? Or is Polygon's guide wrong?
www.polygon.com
I also didn't find the Spotted Garden Eel during the day.
Gigas Giant Clam and the Pearl Oyster seem rare too. I came across two and one of them respectively and I found them both on a Mystery Island.

Animal Crossing: New Horizons guide – Sea creatures and complete list
There’s a whole new subset of sealife to find

I also didn't find the Spotted Garden Eel during the day.
Gigas Giant Clam and the Pearl Oyster seem rare too. I came across two and one of them respectively and I found them both on a Mystery Island.