So I pretty much keep all 4 walls covered (3 with a background, the front with a black pillowcase) to Laputa and Marven's tank but both are always dark. They don't seem stressed, they eat plenty and poop plenty and I see them moving around normally but they are always brown, Marven a little lighter, but still brown none the less. The background I have is actually for a fish tank, but it was the only "forest" background I found that would fit my tank (18x18x24). They've both been in it for 3-4 weeks and the only thing I question is their color. They were bright green when I put them in, good clean bill of health, eating, pooing, moving, hunting, etc. Should I be concerned or let it be? They get a long for the most part too, I've seen them lay together... My gut says they are just hiding with the colors of the background, but I'd like other people's thoughts...
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