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cleaning cage

  1. raining.ashes

    Water Bottle Mouth Peice Black?

    Hello, the mouth peice to one of their water bottles looks black, or tarnished. My grandmother thinks it's just marks from them biting it, but it doesn't look like that to me. It doesn't look like mold either, but I'm definitely no expert. (Sorry if the pics are a little blurry!)
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