My 500 gram male just passed a weird poop, it was green and sort of dry and crunchy, not slimey. He eats a good 15% body weight meal every 5-7 days and last pooped about a week ago, I changed his tub so I figured he would at least urate. Could this just be him passing some of the rats fur ? I recently switched him from multiple pups to a single small rat. He's always had normal poops before this. Should I get tests done or am I worrying too much?