I have recently (this past weekend) moved all of my BPs to tubs (some 6 qt, some 18 qt, and one 26qt based on BP size). In my former display tank setup, I had to fight to keep the humidity over 40%. Now that I have them in bins, the humidity is through the roof! I put lots of holes in the sides of the bins. I'm using 3" flexwatt for heating the one end and I have a water dish in the tub as well as some Aspen for substrate.

Yesterday when I checked the humidity in one of the 18qt tubs it was 90% and I could see condensation forming inside. I added holes to the lids last night hoping that would help and now the humidity is down to 87%. In the right direction but not good enough. I'm trying to get it down to 50-60%.

Any ideas on how to DEcrease humidity? The room outside the bins is at about 45%.

More holes? Would a fan help? I'm getting frustrated.

Thanks for your advice.