I've been growing two plants in DWC since March and haven't cleaned out either reservoir once with no sign of algae or anything else. Doesn't algae need light to grow? So if your container is light proof you shouldn't have any issues.Âstickyfingers111 said:Thanks for all the links guys! Good info and a lot to think about. Im leaning towards deep water culture. Also worried about algae. Cleaning the system once a week seems like it could be one heck of an ordeal!