The people who lived in my house before me "planted" an old bath tub in the flower bed, I guess to serve as a lily pond. However, its too shady in this spot, and the lilies won't grow. So I just have some feeder fish in there and occasionally frogs will take up residence. This a.m. I noticed a very pretty purple color on top of the water. I don't know what it is...if its live little bugs that have grouped together or some sort of purple algae. I have seen this type of thing in black before, it was tiny bugs floating together, but I've never seen the purple before.
