Looking for help from AZ reefers

I live down in the desert and am trying to figure out what everyone else does about controlling humidity indoors? I have a 210 gal system and it keeps my house at about 38% humidity, where as outside its about 16% currently. I would open the doors, but its currently 103 outside! A/C is set for 80, but does not run enough to take all the moisture out of the air. I have tried dehumidifiers, but it just seems to help speed up the evaporation process, thus replacing the moisture in the air. What is everyone else doing?

 

I haven't found a need to do anything about it

 

I get down on my knees and pray for 40 percent humidity.

 

^^ ^^

Adding a glass cover or full hood will help reduce evaporation. Just make sure it's not completely airtight as that may hamper gas exchange.

 

I am by the boarder in AZ and I take no intervention. My tank is only 20 gallons and I loose about 1/3 of a gallon a day.

Currently at 1900 it's 92 and 14% humidity outside.

I will say that LED's have done wonders though to reduce tank heat, there by reducing need for fans, reducing evaporation.

 

I've been running mine at about 77 degrees. I've been sending about a gallon a day into the air with a 120 gallon tank. Seems like with your house at 80 you'll need to depend on evaporation for cooling anyway. As Corailline suggests led's and maybe an external return pump might help. The desert rat may have some suggestions.

 

I have been on LED lights for years now, dont use a cooler for tank water as it sits about 78-80, no cooling fans other than whats on the LED lights, about a 20ish gallon sump, so there is a return pump. I guess maybe a lid over the top to slow it down is next?

 

Do you have an ATO?

 

yep, we use probably 2 gallons a day or so. I use the spectrapure ATO system

 

If you are worried about mold, you need 50% + humidity. Target humidity is 30-35% inside. If its lower, fine, but you may get shocks on carpets and such. I run a fish room with about 400+ gallons of water. I live in Central Oregon where in the summer the humidity drops to 15% in the summer. So no problem. In the winter we use gas heat and that dries the outside air and reduces humidity naturally. As long as I let air freely circulate in my fish room from the HVAC system, it stays quite dry.