How to make your own humidifier.

1x 10W heater (submersible required)

1x Bowl or container that you can submerge said heater in

1x Bowl or container that you can place said container in that is containing said heater. (WTF does that sentence even mean?)

If placed with out the larger container the Coir will act as an insulator and it will heat to well over 100 degrees. The purpose of the other bowl is to act as a "heat sink" so to speak. This will allow the heater to do its job and evaporate the water and not over heat your substrate. Make sure you put several holes in the top as well for maximum evaporation. This entire set up will do the same thing that a reptifogger can do for 1/4th the price. All you have to do is check the water level when you change your frogs water dish. You can also take packing tape (moving tape) and tape half of the lid to hold in the humidity as well. I use a play mat from an old card game I used to play. I cut it to fit the lid and then cut a hole in it the circumference of the dome light that it is over. Its made of rubber on one side so it wont slide and its black so it absorbs heat as well.