I've become obsessed w/ finding a way to illuminate the tank. 'asdaq's idea of shining the 'led' up through has me thinking... what if one were to couple the 'led' w/
fiber optics (inside the ear buds) or
flourescent fiber?
It's beyond me how this stuff works, other than a light source is needed, aka 'led'. I don't know how they would be coupled.. Safety is another issue but they would be inside the ear buds and sealed off.
If not that, then I did find 'led's smaller than 3mm, I think 1.5mm is the smallest I found so far.
Is there anyone that knows more about this that can shed some light on this? (pun intended)