How do you control humidity?

[bauder1986]

Wow, glad I read this thread. So far there is about 200g of tanks in this house and much more to come (inbetween the roommates and I). So far I'm doing good on the humidity. Also helps that I live on edge of the prariies to! Guess I'll have to keep an eye out on that!

[Atomikk]

Controlling your humidity is a must for all tank owners! And do not cover your tank with glass or acrylic. Your tank needs to get rid of CO2 gas, and by closing it off, you can suffocate everything!

As for my setup... here are my pictures:






Two fans, vented outside, on two dehumidistats.

And the write up:
http://blog.fragd.it/2008/11/28/a-re...-continuation/

[Gizmo]

If I can throw this in, its a good idea to also have a method of brining in fresh air from the outside to make up for everything you are exaushting outside. There are 5" inline duct heaters that can heat cold air in the winter months, but if your place is like mine, the cold air can aid in cooling down the tank too.

Edit - If an exchanger is out of reach, use a min 300cfm bathroom exhaust fan. But you will need to have some form of makeup air duct according to building codes. Broan makes some nice "high flow" fans that are very quiet. Note that some juristictions require that fans above 300cfm be interlocked with your furnace, keep that in mind if you can't get a wire down to your furnace.