ya I think that 5 inches of water is not to deep. I have that in my 20 gallon right now. Just make sure that they have some thing to rest on whyle in the water. Mine will either chill on the bank where I have a big rock sitting across dividing the water from the gravel. Or he will sit on another rock that sits on the other side where he is sitting just above the water
-----
Aaron aka Doofy

Knowledge is not power; APPLIED knowledge is power
What is Victory worth without sacrifice