Hi, I had a good size bag of feeders and as I'm feeding them off I start to notice some weird black patches. I through the ones I saw away. But may have fed a few. I've already emailed the supplier about it. But wanted to also get a second opinion on it. Also I shall say I had a regurgitation a couple days ago. I think it was possibly because of that cause my temps are good so I'm ruling out that. But here is a few pictures of a couple from the feeding now.