Aquatic Plants Digest V2 #530
Jan mentions seeing incandescent bulbs partly submerged. That brought back
memories! :-) An old friend of mine ran a "fish store" out of his basement
way back when I was an Undergraduate. He heated and lit all of his tanks with
ordinary 40 to 100 watt frosted incandescent bulbs. I remember he had an A.
fenestralis blooming under the bulb, also a C. griffithii blooming. He was a
Botany Prof. The bulbs literally last forever, because they never get hot.
No, he was never shocked, but he was a careful man! Anyway, it DOES work,
and quite well, too!
Just don't let your Insurance person see you doing it!!