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How to Make a Terrarium Out of a Fish Tank
How to Make a Terrarium Out of a Fish Tank. You can use a fish tank -- or aquarium -- to make a terrarium. The key to making an attractive terrarium that will thrive is to layer gravel, charcoal and soil to create a suitable growing environment for your plants. Once your terrarium is set up, it will require very little care to maintain.
You can use a fish tank -- or aquarium -- to make a terrarium. The key to making an attractive terrarium that will thrive is to layer gravel, charcoal and soil to create a suitable growing environment for your plants. Once your terrarium is set up, it will require very little care to maintain.
Things You'll Need
Fish tank/aquarium (20 gallon)
Household cleaner
Scrub pad
Gravel or sand
Charcoal
Sphagnum moss
Soil
Plants
Clean the aquarium with all-purpose household cleaner and a scrub pad. Rinse with hot water, and dry with a cloth.
Pour in enough aquarium gravel or sand to fill the bottom 1 inch of the aquarium. The gravel will serve as a drainage system for the terrarium.
Add a 1/2-inch layer of horticulture charcoal, which will filter the air.
Add a layer of sphagnum moss. The moss will prevent the soil from sinking into the lower layers.
Pour in enough soil to create a top layer about 2 inches thick. The soil can be distributed evenly, or you can create hills in some places and valleys in others.
Plant the houseplants and flowers of your choice in the terrarium. Some good choices are begonia, baby tears, cacti and miniature African violets.
Use a spray bottle filled with water to mist the soil so that it settles. Continue to water the terrarium one to two time each week.
Cover the terrarium with the aquarium's cover or plastic wrap, to keep the humidity inside. If any of the plant leaves start to rot, crack the lid or pull back the plastic wrap to let some humidity out.
Tips & Warnings
If you terrarium is not near a natural light source, install a grow light in the terrarium.
Add rocks and other decorative items, to beautify your terrarium.
Although a 20-gallon aquarium allows for more plant life, you also can make a terrarium out of a smaller fish tank by following the same steps.
Do not place a terrarium in direct sunlight.
