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6 Responses to “Part 10: Ecosystems”

  1. badelaware says:

    Thanks Aurora!

  2. badelaware says:

    I want to know how to make a hydroponics system out of a twenty gallon tank, but I want to know how would I grow plants on it, what would I need, what kind of fish could I have, would I need to feed them?

  3. What specifically did you want to learn about?

  4. badelaware says:

    Is there anything on hydroponics?

  5. hunybear81 says:

    This is so educational! I loved the Egyptian pyramid!

    ~Autumn~