2 types it seems
Small ones that are very “jumpy”’and about 2/3 size of a pinky nail or smaller. They congregate toward top 1/3 of depth near the walls.

Short video here:
share.icloud.com
Larger ones with rigid shells/backs. They swim around more but not friendly.

Small ones that are very “jumpy”’and about 2/3 size of a pinky nail or smaller. They congregate toward top 1/3 of depth near the walls.

Short video here:
iCloud Photos - Apple iCloud
View, organize, and share photos and videos with iCloud Photos on the web. Changes will sync across your devices with iCloud.

Larger ones with rigid shells/backs. They swim around more but not friendly.
