I was digging through a tank tonight and came across what looked like tiny isopods, which isn't surprising. The surprising part is their color. They were blood red to orangy-pink, all of them. They moved fast too, probably as fast as a fruit fly can walk. They were about 2mm at their largest, and I've never seen them before. Anybody else have experience with them? Am I seeing a nymph stage of a regular grey iso? I've never seen any other isos in this tank, and haven't had any plant additions in months.