Putting the cord through the bottom of the pot is rather critical to be
successful in gettin those bulbs to stay under the water, those little
boogers are airtight and float like a lifejacket......Did the same thing the
first time, put in some rock then the bulb and surrounded it with more rock,
popped it in and woops up she came. Live and learn, sometimes experience is
the best teacher.....Lots a Luck....Claude