What naturally removes algae from fish tanks?

Natural algae removal utilizes biological and physical methods rather than chemicals. Consider introducing algae-eating creatures, such as the Amano shrimp, to combat attacks on thread algae. Adding fast-growing plants will also allow them to outcompete algae in a battle for nutrients, starving them out. There's no substitute for manual removal during water changes, as you can remove algae straight away. Whatever method you use, do treat the real cause, such as excess light.

Add fast-growing plants like hornwort or water wisteria. These will absorb the nutrients that feed the algae. Plant them densely and ensure they are in high-light areas, as that is where they grow best. I aim for abour 70% environment coverage of my tanks. The competition between algae and plants will dramatically reduce the appearance of algae in a short timeframe, weeks rather than months.

Regulate nutrients through feeding discipline. Only feed fish enough that they can consume in two minutes. Take out all leftover food immediately. Change water 25% weekly. Check phosphates monthly. These methods starve algae on their own.

Modify lighting patterns to disrupt the algae growth cycle. During an algae outbreak, reduce the daily light duration for growing algae to 6 hours. Include a dark period of 4 hours during midday. This natural interruption will cease the photosynthesis process for algae cells and conserve your bacteria.

Keep consistency for long-lasting results. Clean your filters every month with tank water. Vacuum your substrate every week. Observe your algae growth patterns. Patience is required to see natural methods work; however, they create an ecosystem that should keep algae growth under control.

Read the full article: Comprehensive Fish Tank Algae Control Guide