Things You'll Need:
- Terrarium
- Gravel or sand
- Moss
- Potting soil
- Water
- Plants
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Step 1
Determine the actual size of the terrarium. A 10 or 25-gallon aquarium is an ideal choice for an indoor terrarium. Place it on a stand or on a counter that offers a sturdy base.
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Step 2
Go to the local pet store and consult with the staff about the types of plants to go into the terrarium. This is a matter of personal choice and preference.
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Step 3
Place a layer of gravel or sand on the bottom of the terrarium for better drainage and filtration. This material is at any pet store or home improvement store.
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Step 4
Look for moss to add to the terrarium to act as a filter layer between the soil and pebbles or sand.
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Step 5
Add a layer of regular potting soil to the top of the moss. This serves as the growth and nourishment layer of the terrarium. Moisten the potting soil to evenly distribute it across the bottom of the terrarium.
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Step 6
Plant seeds or established plants into the potting soil. This material is user specific and can be almost any planting material.









