[Help me identify this?]

Ahhh the blob died the next day, and my prawn ate it up. I can't take another picture.

[Help me identify this?]

I found this washed up on shore just now. I am very curious about what it is. Do you guys have any idea? It doesn't seem to be an egg. It's moving by itself and it has tiny tentacles, and i see 2 tiny black dots i assume to be its eyes.

lol btw excuse the tank for being such a mess.