How To Get Rid Of Rhizoclonium Algae {The Easy Way}

Algae can be very discouraging to tank maintenance. Rhizoclonium algae are among the top algae that affect fish health.

We look into how to get rid of them in your tank.

How To Get Rid Of Rhizoclonium Algae

There are many methods to get rid of Rhizhoclonium algae. Depending on which of the methods works for you, we recommend trying them out. Highlighted below are ways you can explore;

Algae-eating Species

Several algae-eaters include Otocinclus, nerite snail,  Amano shrimp, and Siamese algae eaters.

This species in your fish tank will help eliminate rhizoclonium algae as they feed on them. Although we recommend that you complement these algae with other foods so that the algae-eating species can have balanced nutrients and last longer.

You can trust them to consume a large portion of algae if you have a large army. We recommend an army of 5 for tanks of 20 gallons.

However, some of these species increase in number as they consume algae, so if you don’t want excess, you may have to sell them or give them out.

Tank Check

Performing a tank check may help you to get rid of algae or keep them under control. This measure is best practiced when building a planted tank.

Importantly, you should prioritize nitrogen by observing the tank to check for flow and lighting issues. Correct light issues by avoiding excess exposure to light.


Maintenance will always keep your tank healthy. You can get rid of Rhizhoclonium algae and have your tank in a clean, stable, and safe condition by conducting routine maintenance, including cutting overgrown plants, getting rid of debris, and having about 30% water change.

How Does Rhizoclonium Algae Get Into Your Aquarium

There are several ways for Rhizoclonium algae to gain access to your aquarium. Unchecked CO2 levels and imbalance nutrition are significant reasons for this predicament.

You will also find that too much artificial or direct sunlight will cause algae to grow.

Meanwhile, stagnant water and lack of tank hygiene are some minor reasons you should not overlook.

Does Anything Eat Rhizoclonium Algae?

Yes. A couple of species eat Rhizoclonium algae. Fishes eat algae effectively. Herbivore fishes make this easier as they are the primary consumers of Rhizoclonium algae.

Consuming it is easy since rhizhoclonium algae float instead of sticking to surfaces.

Shrimp also eat rhizhoclonium algae and work effectively when they are an army. Among shrimp that consume algae are Amona Shrimp, Cherry Shrimp, etc.

That’s not all; snails will consume algae as well. However, snails will not do a complete cleansing job. But they will keep algae away significantly, helping to prevent algae from overriding your tank.

What Temperature Does Rhizoclonium Algae Die At?

You can expect Rhizoclonium algae to die at 75°C. You should not find it surprising that certain algae survive 70°C. This category maintains the Thermophytes classification and usually survive temperature not greater than  70°C.

How To Prevent Rhizoclonium Algae In Your Aquarium

Preventing Rhizoclonium algae in your aquarium can take different approaches. Here are some of them;


Direct exposure to light can cause algae to grow in the tank. Having your aquarium under too much artificial light or sunlight is a welcome call to algae.

An excellent way to prevent light from causing algae growth is to limit exposure. With artificial light, you can use a timer. 8 to 10 hours of light daily is excellent for good tank health.

Moderate Feeding

Excess feed in the tank can cause algae. This occurs due to excess levels of phosphate in the water. It would help if you watched how much food you give to the fishes and ensured that excess feed is taken off.

Water Change

An occasional change of water helps to prevent rhizoclonium algae as well. This measure is crucial and goes a long way in preventing algae because you get to lower nutrients in the tank.

Change of water works to reduce nitrate concentration in aquariums. Performing a change of 15% of the water is effective in tackling the development of algae while also encouraging healthy aquarium life.

Algae-eating Shrimp

There are algae-eating shrimp that will effectively tackle any potential growth of rhizhoclonium algae in your aquarium. Amano Shrimp and Cherry shrimp are quite notable for the rapid consumption of algae.

Live Plants

Keeping live plants helps to reduce the lifespan of Rhizoclonium algae. Live plants absorb a large portion of nutrients, depriving algae of needed nutrients to survive.

These measures will go a long way in making your tank algae-free. We recommend practicing all, as one of them cannot guarantee an algae-free aquarium.

Occasional cleaning can also make a great addition to your efforts. You can watch out for and eliminate any algae beginning to develop on the glass or other hard surfaces in the tank.

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Is Rhizoclonium Algae Dangerous To My Fish

You may hear that algae bring some benefits to fish. That is true, but there is more. In broader reality, algae cause compound issues for fish growth and may disfigure the tank, especially when it gets overwhelming.

Excess algae can change the water quality, causing a problem with the water cycle and hygiene. A further problem emerges when the algae form a thick mat and trap fish. Smaller fishes are often victims of this development and may find it hard to escape this predicament.

Among significant harm they may cause to both big and small fishes is breathing difficulty. Excess algae may present issues for fishes trying to reach the surface.


While algae offer few benefits like being an extra source of food for certain fishes, you don’t want to risk having them outgrowing your tank. It is best to keep them on a minimal level. There are myriads of options to explore in keeping rhizoclonium algae under control. You should explore the best options for you and give your aquarium the good and healthy life it deserves.

John Brandon

John has kept fish all his life (since he was about 5). He started with keeping guppies and fell in love with fish keeping almost straight away. That was 40 odd years ago. These days John still keeps fish and currently has two large tanks where he keeps many different types of fish such as Angelfish, Neon Tetras, Goldfish, Guppies and many more.

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