Tell'r this...
The vases will under no circumstances go above YOUR tank PERIOD! If she doesn't like it, well tough s..t. Tell'r to go back and live with her mother where you found her if she doesn't like it. You will not jepordize your fish's lives with some cheap, 10 cent, ugly as sin, knock off, imitation, flea market vase. And a picture of her godforsaken,straight from hell mother above the tank would traumatize the fish and produce deformed, very low quality fry. Not even fit for feeders. Thats the way its gonna be becasue as long sa she lives under your roof, she better damn well do as you say 'cause you are the MAN of the house and thats the way its gonna be. So put that in your pipe and smoke it Hun.
You tell'r that and she'll say nothing. Nothing but mouth on the floor, jaw dropping shock. At this point you throw your chin up high, smile and say "huh, guess I set you straight?"
This'll last about 5 minutes. At which point she grabs ahold of the aformentioned vases, both of them, grips them tight and slings both of them with the speed and power of a Roger Clemens fastball right through the front of YOUR tank.
Well now comes the fun part. You gravel a bit, apologize constantly, tell'r you were only kidding, you love her mother and that she gets her beauty from her, have Ma over for steaks, gravel some more. She'll begin to feel bad after all the apologizing, graveling, you couch sleeping and having cut you off for a month that she'll take you out and buy you a ready to go, complete set up 200+ gal. tank with all the trimmings including your choice of stock, ( let her pick a few though for good measure).
See, if you play it right you can come out of this way ahead. It could be tricky but if ya' play ya' cards right, and I mean just right, you'll end up smelling like a rose.
If that doesn't work, prior to her throwing the vases, lower the shelf as low as you can in relation to tank maint. and get a piece of clear plexiglass to lay on top of the tank in key areas where the vases might hit. Shouldn't distract any if ya' do it right and camoflage it some.
The choice is yours, 200+ new tank or plexiglass.
Grab the bull by the horns and go for the new tank. I dare ya'.
