Alpha, i did not gave Tesla the name "mad scientist" he was known by that. and i did not mean it as an insult it was supposed to be a joke. anyways Tesla dedicated his life to his job and he studied and had tons of experience b4 swimming against the current. most of the people here are hobbyist not scientists. good job on keeping the nem, i envy you. but i cannot. as for the ocean yes it is more stable than the aquarium no matter what we do. there is no salinity swings, temp swings are very minimal and over extended time, parameters are the same since ever. well every thing in the ocean is stable until bp or other company screw up.