a continuation of my thread on interesting aquariums..i saw a pair of table lamps today in the store that were made of clear class...looked very much like a vase, had a globe shape at the bottom and a stem going up with the bulb at the top. Would it be dangerous to turn these into aquariums? I would have to seal the hole in the bottom of the glass and find some other way to get electricity to the light bulbs. Any suggestions?