Do Marimo Balls cause algae?

Asked By: Grethel Kreftsiek | Last Updated: 25th April, 2020
Category: pets fish and aquariums
4.8/5 (573 Views . 23 Votes)
Actually Marimo moss balls are not moss at all, they are a type of algae, Cladophora (not sure of spelling) I believe. And yes they are known to spread algae because they are made of algae. The reason some say they can help with algae is they can outcompete other algae for nutrients.

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Also to know is, do moss balls get rid of algae?

Marimo moss balls suck up the same nutrients as undesirable algae, depriving invasive algae of those nutrients. Of course, moss balls won't make that much of an impact in larger aquariums unless you get more a lot of them. I don't know about killing off algae, but they can help prevent unwanted algae from growing back.

One may also ask, how can you tell if a Marimo Moss Ball is real? A real Marimo moss ball will be solid algae throughout, with the growth pattern radiating from the center outwards. It will tear easily if you try, but should not simply fall apart in water.

Herein, are moss balls good for fish tanks?

Marimo Moss Ball Benefits in Aquariums. Marimo moss balls absorb pollutants such as phosphates, nitrates, ammonia, and other waste solid debris in the surrounding water. Although they cannot completely replace a water change and filtration system, a large ball can help significantly in smaller aquariums.

How long do moss balls last in a fish tank?

In ideal conditions, Moss Ball Pets™ can live for one month without water. It is not recommended to keep your Moss Ball Pets™ out of water for any extended period of time.

28 Related Question Answers Found

How long do moss balls last?

Marimo balls are regarded as good luck charms in Japan, and since they have been known to live to 200 years or longer, they are often kept as family heirlooms.

Do moss balls need food?

No food or fertilizers are needed since they create their own food through photosynthesis. It's okay to use fertilizer for other plants in the tank, which may promote faster growth. Marimo balls grow slowly: up to 5 mm per year, eventually reaching 2 to 5 inches in aquariums, or 8 to 12 inches in natural conditions.

Can you have too many Marimo moss balls?

Can You Have too Many Marimo Moss Balls? If you put too many moss balls in a tank they can shade each other, which can cause some of the moss balls to die or turn brown in color. You also don't want to add too many moss balls to a tank since there might not be enough nutrients in the water for them to grow properly.

Do moss balls make water cloudy?

The moss balls are most likely not causing the cloudy water. Don't worry about the water, it happens when you get a new tank and should go away within a couple days, and wont harm your fish. Some other aquatic plants may cause cloudy water or algae, but the cloudy water you have now is normal.

What are bio balls?

Bio balls are spheres consisting of tiny tubes that provide a large surface area on which water-filtering microbes can grow. They are typically used in fish tank and fish pond filters to transform potentially harmful ammonia into benign nitrates.

Can you cut a Marimo moss ball in half?

The good news is that marimo balls are very easy to propagate. Simply squeeze the water out of your moss ball and cut it in half with a knife or scissors. Roll the new clumps in your hands to form little spheres, and tie some cotton sewing thread around them to maintain the shape.

Why does my moss ball smell?

A: As long as the marimo balls are all green and healthy looking. The smell is a result of being in the same water for too long in warmer temperatures. Once they are cleaned and placed in fresh water, the smell should reside.

Can I touch my betta fish?

Betta fish should rarely, if ever, be petted. It's not good to pet them, as it may remove their natural slime coating, making them prone to certain diseases. Also, never touch them with dirty hands, as bacteria can easily be transmitted through direct contact. Only use a mirror to entertain your betta occasionally.

Why do bettas like moss balls?


Marimo moss balls can live in the same water parameters that bettas thrive in, however they do grow faster in colder temperatures. Moss balls also work to retain good tank bacteria, emit oxygen, and reduce nitrate levels which can stress betta fish health at high levels.

Why is my Marimo moss ball falling apart?

Marimo turning black and/or falling apart Marimo are unfortunately known to start decaying from the inside out sometimes, especially when it has been covered by hostile algae for a while or when it is simply too big for clean water to reach the inside.

Can moss balls kill fish?

It's just a fake ball of moss that actually a hollow structure filled with activated carbon and covered in green fuzzy stuff. So yes it's safe to put either kind in the tank, but make sure you change it out about once a month or the carbon will start redepositing everything bad it absorbs and kill the fish.

How do I reduce algae in my fish tank?

Clean it up: If you see algae beginning to grow on the glass, rocks, or other hard surfaces of the tank, remove it. Scrape the glass, remove rocks, and scrub them. Vacuum the gravel when you perform water changes. Keep live plants: Live plants will absorb many of the nutrients that algae thrive upon.

What are Luffy balls?

The 4 LUFFY Giant Marimo Moss Balls are the natural live plants that may not be perfectly spherical in shape and lush green in color. You will receive around 1.5 - 2-inch diameter ball which is three times larger than the nano marimo balls. In fact, they are very low maintenance live plants.

Do Marimo moss balls get bigger?


Marimo balls are regarded as good luck charms in Japan, and since they have been known to live to 200 years and beyond, they are often kept as family heirlooms. By the time future generations receive the marimo balls, they will be larger in size and will continue to grow with each generation.

How much does a moss ball cost?

Marimo balls grow very slowly, and usually cost around ten bucks at the pet store.

How do you make moss balls grow faster?

Growing Moss Balls
Drop the baby moss balls into a container filled with warm, clean water, where they may float or sink to the bottom. Temperature of the water should be 72-78 F. (22-25 C.). You don't need a large container to start, as long as the Marimo moss balls aren't crowded.