Product Review (submitted on December 18, 2009):
Bought it for my 6 year old daughter and she loves it. The little bugger grow and grow and are really strange to look at, almost like aliens (heck, the have THREE EYES). So other have said the water get dirty and needs to be cleaned often. Also throw away the glow in the dark rock, they do not provide much illumination and they provide a harbor for algae grwoth.