Hi there! I am planning to use crystal beads for my aquarium to add color into it. They look something like this http://www.crystalwaterbeads.com/app...s/show/1491177. Has anyone of you tried this before? How does it look? I like how cute it appears on vases but I don't know if it will have the same effect for aquarium. Or what other things can I add to my aquarium that are not that expensive?