Jerry Fish?
Looks like a living lava lamp. Very cool. Whenever I go to the Monterey Bay Aquarium, I spend a ton of time just staring at the jellies.
How big is that tank? Is looks small. Is it hard to keep a small salt water tank going? We have a 55 gal fresh water tank that my wife cleans about every other week. What's it like to keep that tank healthy?
It's only 2 gallons and water changes are 25% weekly and 50% monthly. Some maintenance with water treatment and filtering but nothing as intense as your tank. We may get snails if here is algae and we will monitor levels of ph, salinity, nitrites, etc.
This thing is mesmerizing. :thumbup