Why do your orbeez smell bad?

Orbeez can develop a bad smell due to several factors, including bacterial growth, mold, or decomposition of organic materials. If they are exposed to moisture for extended periods or not stored properly, they can become a breeding ground for bacteria. Additionally, if the water used to hydrate them is contaminated or stagnant, it can contribute to unpleasant odors. Regular cleaning and proper storage can help prevent these issues.