Just to set the record straight they do have unscented ones that have the blue (dyed) ones in them but work just the same. Just check the ingridants and it should read sand,silica, and water. I'd go with watersorb if it were I now. Knowing what I know now! Quality, quality, quality! Watersorb!
Haw you looked on eBay? There's always beads on there usually pretty cheap. I'm no expert on beads but from what I've read beads are beads are beads. There all basically the same.
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