Hi there, my name is Dan and my wife and I, Amy, have just became the proud "parents" of 4 White's lumpies. 2 are small, 1/2 -2" and the others are larger, 3-4". We have them in a 75 gallon aquarium that is separated in the middle so the large ones won't have a snack. We just got the larger ones two days ago and they dug in and have moved very little since. They are active when you pick them up but go straight to digging in once we put them in the habitat. Is this ok? The humidity and temp are fine, 77.5 and 60 respectively. Thanks.