If you have been lucky enough to see a fish ball underwater (I do have National Geographic Channel) you would have noticed intermittent silver flashes as some fish turn side on to reflect sunlight. We have tried to replicate this effect using mirror polished aluminium fish in amongst the clear acrylic. We think ours is an admirable effort but of course, the real thing is simply awesome.
Dimensions shown 1800mm dia. (5' 10"). Illuminated by external light source.