I walked in one morning & found these pearl like objects attached to one strand of this plant (reminded me of a green tumbleweed in the store) that I purchased a few months prior. They were quite pretty.... pearlized/metallic looking ranging from goldish to purple. I phoned the pet store to ask & was told by a lady that it might be some kind of algae & if the balls burst they would be all over my tank.... I broke off the piece of plant at the bottom and quickly stuck it in a ziplock filled with water. She must have been right because they disappeared not long after I closed the ziplock. Had planned to take it to the pet store for final id but no reason to then.... I couldn't see any evidence they had ever exisited.... was very glad to have taken these pics. Thanks