The tank may not be difficult to build, though it's hard to say in this environment.
You would need some sort of chemical agent - like epsom salts - to help whoever it is float. It's part of the experience, the ability to lay there without worrying about drowning.
no subject
You would need some sort of chemical agent - like epsom salts - to help whoever it is float. It's part of the experience, the ability to lay there without worrying about drowning.