I'll be honest and say it has been awhile since I was at the aquarium but this was amazing. If I remember correctly the thin sheer like material surrounding the plant are all eggs. Unfortunately I forget what type of fish it is that lays these but it was beautiful. Guess you'll have to go for a visit to find out
For some reason, I am very partial to jellyfish. I think it's because of how smoothly they flow in the water and it's like they are made of nothing. I find them very interesting to photograph. Although, if I ever get stung by one I'm sure I will change my tune.