So, it’s not necessarily a bad thing then if it’s an algae bloom? Just seems strange that it lasts soooo long. I haven’t ever fertilized it, but I’m sure it gets some from run off. I was thinking of adding dwarf lily to an area that is 3-4 ft deep and has deep drop off all around it. The vast majority of the pond is deeper than 4ft so I would think they would be okay to maintain...