A terrarium is an all-glass container with a screen top for ventilation. Amphibians or reptiles are typically housed in a terrarium, which normally also contains plants of various types. The humidity in a terrarium is created and maintained by using a misting system. According to Alan Jardine, former Chief Conservation Officer at the National Zoological gardens of South Africa, a number of commercial misting systems are available but you can make your own with very little equipment.
Fill a 5-gallon plastic bucket with tap water and add a chlorine neutraliser. Stir vigorously with a plastic rod for a few minutes. Place the bucket behind the terrarium.
Place a 50-watt aquarium heater into the bucket and set the thermostat for 23.9 degrees Celsius. Plug the heater into a wall power source and turn it on.
Place the reducer tube that comes with the mini submersible pump into the exhaust nozzle of the pump and smear a teaspoon full of 100 per cent non-toxic silicone sealer around the join to secure the reducer tube.
Cut a 3-inch long piece of 1/4-inch irrigation tubing and push one end into the reducer tube. Smear a pea-sized amount of 100 per cent non-toxic silicone sealer around the join to secure the tube. Allow the silicone to dry for 24 hours.
Push the free end of the 3-inch long piece of 1/4-inch irrigation tubing into a plastic in-line T-piece.
Push a second 3-inch long piece of 0.25-inch diameter irrigation tubing into one of the remaining two outlets of the T-piece and place a plastic in-line tap onto this piece.
Push a 2-foot long piece of 1/4-inch diameter irrigation tubing onto the remaining outlet of the T-piece.
Push a mist spray nozzle into the free end of the 2-foot long piece of tubing and place the nozzle into the terrarium.
Plug the mini submersible pump into an electrical timer. Set the timer to run for two to three minutes every three to four hours.
Plug the timer into a wall power source and turn it on.
Adjust the amount of water being pumped to the mist nozzle by opening the plastic in-line tap to allow more or less water to return to the bucket.