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brown in places

  1. Why is my golden apple snail turning brown?

    Invertebrates
    Hey, i noticed recently that my apple snail is turning brown in places and was wondering is this normal? The area of brown seems to change every now and then. I have crushed cuttlebone in with it and ph is okay for it btw so pretty sure it's not erosion. Attached is the picture, sorry for the...
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