It seems like the carbon filter is spitting out tiny particles of carbon everywhere. Nothing in the tank is black, so I don't know what else it could be. Also getting a film or oily substance on the top layer since it started. Did a water change and rinsed over everything covered in the particles. Rinsed the carbon really well. Top layer is clean now but I'm just a little concerned. The carbon media was going for more than a week before it started. It's just a little Whisper 10. I feel like garbage because I thought it stopped after not seeing any from last time, so we got a new snail. This morning it was everywhere again and the snail had been all through it.