this post was submitted on 11 Jan 2024
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Algea can't grow if there is no nutrients, and see the goal is to have the plants uptake all the nutrient content so there isn't anything for a 3rd party to consume. Thus you need a plant that is high growth speed which one of the easiest and cheapest to manage and buy is hornwort. Followed by a timed light schedule and I bet your issue will line out. If there is nothing extra for algea to eat it can't survive.