Cheap DIY Cage Humidifier
List of supplies:
- Drill
- Silicone
- Hose
- Pump (Pump shown is designed for 30 to 60 gallon tank)
- 2 Liter Soda Bottle or similar
- Air stone and blade (not shown)
Steps:
Cut two lengths of hose. One for cap to tank, one for pump to bottle. Drill hose sized holes into one cap and one into the side of the bottle, about 5 inches from the top.

Insert tank hose into cap, then silicone for airtight seal. Insert pump hose into side, feed through top, install air stone, feed back down to bottom. Silicone around side hole.

When silicone is dry, fill about half way with water.

Finished product. Put the reservoir someplace hidden, feed the hose from cap down into tank and place where desired, turn on pump.
For increased humidity, use smaller bottle or raise water level. A larger hose to the tank, or more than one hose works as well.
A half bottle keeps my 30 gallon's humidity at 55%.
For more humidity, put a sponge inside reservoir. It will cause more humidity to build up inside, instead of the air escaping out hose without being properly saturated.
This article merged from Reptile Evolutions. All articles & images are Copyright their respective owners, reproduced with permission.