About 3 months ago I introduced a jar of Tisbe pods with the lights on and watched them get eaten up promptly. Tonight I shined a flashlite to check out bristle worm population like I do from time to time and was shocked to see thousands of Tisbe pods all in the water column. No idea where they might have come from. They haven't been there before and I look at my tank almost nightly. dang sure weren't noticeable yesterday. I was shocked but happy. It's just very odd. I've got as many tonight as when I dumped that jar. I'm at a loss as to how they just suddenly appeared tho.