I just received an order of copepod and live plankton from Algae Barn. I was expecting to "see" the copepod but it looks like I got a $25 bag of detrus. I added it to my system anyway and have ordered another batch via Reef2go. Now I'm questioning the "live phytoplankton. Has anybody else had this experience? Did I add detrus and is my plankton really live?