Is that the sideways peace sign across the eyes, and then you repeat with the other hand? Or you do the cocky head side to side bobble and then do a robot dance? (Domo Amagato!) ... I'm so out of touch these days. I never get these things right.
Anyhow, technically my dad doesn't care if you have a tank with water in it.
Mostly if you know how to turn off a pump because something is spilling water on the floor or stuff like that.
But I do have a couple peeps on standby now though. Thanks doods, you all rock! (live rock that is).