Hi All, I am a new crabber with 3 Hermie's. I have them set up in a 40 gallon tank with play sand and EE. I have 2 that love to dig and are constantly doing it and 1 that loves to live in his crab shack. My question is, I keep 2 water dishes, one with salt water and one with declorinated(Sp?) water & a sponge in it. I keep the temp around 78 and the humidity around 75-80%. I was changing out the food dishes yesterday and noticed that I had a white mold growing around one of the food dishes. What could be causing the mold? Also, I got my crabs a little under a month ago. They were all very active the first few weeks and now they are so laid back. Thanks for the help and so glad to have found this forum!!!