How does salt affect plant growth, like when we use salt to de-ice snowy winter roads? How does adding fertilizer to the soil help or hurt the plants? What type of soil best purifies the water? All these questions and more can be answered by building a terrarium-aquarium system to discover how these systems are connected together.


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2 Responses to “Terraqua Column: How does water affect land and animals?”

  1. Wonderful! And yes you can aerate the water by blowing bubbles into the tank or replenishing the water every few days.

  2. beckytubbsandcrew says:

    We just made 2 of these with fish in the bottom part.
    Don’t we need to give the fish some air??
    Do we do this a bit different with the fish?