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  1. Cat litter for substrate?

    Beginner Freshwater Aquarium
    I've read in a few places that cat litter can be used as a substrate. I can't seem to find much info on it, and I have a few questions: 1. Would this be compatible with plecos or catfish? 2. Can you grow all or any aquarium plants in it? 3. Is it safe? Thank you for your time :-)
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