Does anyone else think this is strange?

[MombasaLionfish]

Here's my thread https://www.reef2reef.com/threads/why-did-my-hermit-crab-bury-its-molt.572893/ What strange things do your fish/crabs/other do?

 

[DeniseAndy]

I had a yellow assessor that would come out when lights were out at night and ride in the flow for a half hour. Swim into it, ride to other side of tank and jump into it again. Every night. Funny guy.