Duckweed
What color is it? I don’t think its anything to be concerned about. Duckweed grows off-color (light-grayish) roots, averaging up to 2′ long. If this is what you’re seeing its a normal part of the plant. Duckweed can get invasive and its not always easy to control by decreasing the lighting duration, since it has full exposure to any lighting you give it. There are some fish that will eat Duckweed, including occasionally Angelfish, but once it starts overgrowing it can get out of hand. For now, just keep scooping as much as you see to eventually deplete it. Ray
Category: Philippines Internet Koi Society
