How to Get Algae Out of Aquarium: Simple Steps for a Cleaner Fish Tank

Do you have an aquarium at home? Are you tired of seeing unsightly algae growth all over the glass walls and decorations? Don’t worry! You’re not alone. Algae is a common problem in aquariums, but it can be easily remedied with a little bit of effort and know-how. In this blog post, we’ll teach you everything you need to know about removing algae from your aquarium, from identifying the different types of algae to using the right tools and techniques to get rid of it.

With our tips and tricks, you’ll have a beautiful, crystal-clear aquarium in no time!

Identify the Type of Algae in Your Tank

If you’re dealing with algae in your aquarium, the first step is to identify the type of algae you’re dealing with. This can help you determine the best course of action to get it out of your tank. Some common types of algae include green algae, brown algae, and blue-green algae.

Green algae is usually the most common and can be caused by excess light or nutrients in the water. Brown algae is often a sign of low lighting or poor water quality, while blue-green algae is more rare and can be toxic to fish and other aquatic life. Once you’ve identified the type of algae, you can take steps to remove it, such as adjusting lighting and water parameters, adding algae-eating fish or snails, or manually removing it with a scraper or brush.

Remember, it’s important to maintain a healthy balance in your aquarium to prevent algae from taking over in the first place.

Green Algae

Green algae are a common occurrence in aquariums, and identifying the specific type of algae in your tank can help you determine the best course of action for controlling it. One type of green algae that is often found in tanks is known as filamentous algae. This type of algae forms long, stringy strands that can be unsightly and can also clog filters and pumps.

Another type of green algae is known as diatoms, which are microscopic organisms that form a brownish coating on surfaces in the tank. While diatoms are generally harmless, they can be a sign of excess nutrients in the water, which can lead to other types of algae growth. By closely observing the appearance and behavior of the algae in your tank, you can determine the best approach for controlling it, whether that involves increasing or decreasing light exposure, adjusting nutrient levels, or using chemical treatments.

With careful management, you can keep your tank looking healthy and vibrant while preventing the overgrowth of green algae.

how to get algae out of aquarium

Blue-Green Algae

As a fish-keeper, identifying the type of algae in your tank is essential to maintaining a healthy environment for your aquatic pets. One type of algae that can quickly take over your tank if not addressed promptly is blue-green algae. Blue-green algae or cyanobacteria thrive in warm and nutrient-rich water, making aquariums the perfect breeding ground.

They may appear as a slime-like substance on the surface of the water, rocks, or plants in your tank. The best way to identify blue-green algae is by its distinctive blue-green color and pungent odor. If left unchecked, this type of algae can harm or even kill your fish by depleting oxygen levels and releasing toxins into the water.

To prevent blue-green algae from taking over your tank, ensure that your tank is not overfed, the filter is adequate, and you are not overstocking. Regular water changes and scrubbing any algae growth from the tank walls and decorations will also help keep blue-green algae under control.

Diatom Algae

Diatom Algae As an aquarium owner, it is essential to know the type of algae growing in your tank. One of the common types of algae in freshwater tanks is diatom algae. They are microscopic, golden-brown algae that thrive in freshwater and saltwater environments.

Diatom algae often appear as a brown film on the tank surface, plants, and decorations. One distinguishing feature is their glass-like, silica shell, which makes them unique from other types of algae. Although diatom algae are harmless to fish and plants, they can be unsightly and indicate underlying issues, such as an imbalance in nutrients and lighting.

To control diatom algae, regular water changes, reducing light exposure, and removing debris can all help prevent their growth. In conclusion, identifying diatom algae in your tank is crucial in maintaining a healthy aquarium environment.

Clean Your Tank and Filter Regularly

If you’re struggling with algae growth in your aquarium, it’s essential to clean your tank and filter regularly. Algae thrives in an environment that’s rich in nutrients, so keeping your aquarium clean can help to reduce the amount of food available for algae to grow. Make sure to perform partial water changes every week, removing any uneaten food or debris at the same time.

This will help to maintain a healthy environment for your fish, while reducing the number of nutrients available for algae to thrive. Additionally, it’s important to clean your filter regularly. Over time, debris can build up within the filter which can lead to increased algae growth.

By cleaning your filter at least once a month, you can help to prevent the buildup of debris and keep your aquarium clean and healthy. By taking a few simple steps to maintain the cleanliness of your aquarium, you can help to prevent algae growth and create a healthy environment for your fish.

Remove Any Dead Plants or Fish

As an aquarium owner, one of your top priorities should be maintaining a healthy and clean environment for your aquatic pets. One important aspect of this is regularly removing any dead plants or fish from the tank. Not only does this prevent any toxins from contaminating the water, but it also keeps the area looking tidy and aesthetically pleasing.

Additionally, it’s crucial to regularly clean both the tank and filter to ensure that debris and waste are properly removed. This not only promotes a healthier environment for your fish but also extends the lifespan of your tank equipment. By implementing a consistent cleaning routine, you can enjoy a thriving and visually stunning aquarium for years to come.

Scrub the Walls and Decorations

If you own a fish tank, it’s essential to keep it clean and well-maintained to ensure the health and happiness of your fish. One important aspect of tank maintenance is cleaning the walls and decorations regularly. Over time, algae and other unsightly buildups can accumulate, making your tank look dirty and uninviting.

To clean your tank, start by removing any decorations, plants, or other objects inside. Then, use a specialized aquarium cleaning brush or a simple sponge to scrub the walls of the tank thoroughly. Be careful not to scratch the glass or acrylic material.

Afterward, rinse the tank with clean water and reposition the decorations. It’s also crucial to clean your filter regularly to ensure proper water circulation and filtration. Overall, maintaining a clean fish tank is an essential part of caring for your aquatic pets, and it all starts with regular cleaning and maintenance.

By doing so, your fish will be happier and healthier, and you’ll enjoy a beautiful aquarium for years to come!

Clean or Replace the Filter

As an aquarium owner, one of the most important tasks you should never neglect is cleaning your tank and filter regularly. Over time, debris and waste will accumulate in your filter, causing it to become saturated and clogged. This can lead to poor water flow and reduced filtration efficiency, which can ultimately result in unhealthy water conditions for your aquatic pets.

Therefore, it’s important to clean or replace your filter regularly to ensure that it’s functioning properly and providing the best environment for your fish and other inhabitants. When it comes to cleaning your filter, the process will vary depending on the type of filter you have. Some filters may require occasional rinsing with water or cleaning the filter sponge, while others may need to be disassembled and soaked in aquarium-safe cleaning solutions.

Regularly replacing the filter cartridge is another option, especially if cleaning alone is not enough. It’s also important to keep an eye on the filter’s flow rate and adjust accordingly if necessary. To conclude, taking the time to clean or replace your aquarium filter is crucial for maintaining a healthy and thriving aquatic environment.

It’s a simple yet effective way to ensure that your fish and other aquatic creatures have the best living conditions possible. So, make sure to schedule regular maintenance and cleaning of your filter to keep your tank clean and your pets happy.

Adjust Lighting and Feeding Schedule

If you want to get rid of algae in your aquarium, adjusting your lighting and feeding schedule can be a game-changer. Algae need light to grow, so if you have your aquarium lights on for too long, or if they’re too bright, algae will thrive. Try reducing the amount of light in your aquarium by using a timer or turning the lights off for a few hours every day.

It’s also a good idea to reduce the amount and frequency of food you give your fish, as overfeeding can lead to an excess of nutrients in the water, which algae can feed on. Consider feeding your fish only once a day, and remove any uneaten food before it has a chance to decompose and contribute to algae growth. These small changes to your lighting and feeding schedule could be the key to getting rid of unwanted algae in your aquarium.

Reduce Lighting Hours or Intensity

If you have chickens in your backyard, it is essential to manage the lighting and feeding schedules properly. Adjusting the lighting hours or intensity is one effective way to ensure your chickens stay healthy and productive. When chickens are kept under constant light, they tend to lay eggs year-round.

However, this can lead to exhaustion and reduced egg production. Therefore, reducing the lighting hours or intensity can help your chickens rest and maintain their energy levels. Typically, reducing the daily lighting to about 14 hours a day in the summer and 10 hours in the winter should be enough to ensure your chickens are well-rested.

Adjusting the feeding schedule to align with the lighting changes will help your chickens maintain their productivity, health, and overall wellbeing. So if you’re planning to keep chickens in your backyard, remember to plan their feeding and lighting schedules wisely.

Feed Your Fish Less Often and in Smaller Quantities

Proper feeding habits are crucial for the health and wellbeing of your fish. Many people tend to overfeed their fish, which can lead to obesity, digestive problems, and a dirty aquarium. To prevent these issues, it’s important to feed your fish less often and in smaller quantities.

As a general rule, feed your fish as much as they can eat in two to three minutes, once or twice a day. Overfeeding can also lead to excess waste, which can harm the water quality in your aquarium. To maintain water quality, you should also adjust your lighting schedule to mimic natural sunlight.

This means turning off your aquarium lights for at least 8-10 hours a day. Follow these simple feeding and lighting habits to ensure your fish stay healthy and happy for years to come.

Use Algae-Eating Fish or Invertebrates

If you’re struggling to keep algae under control in your aquarium, have you considered using algae-eating fish or invertebrates? Certain species of fish, like plecos, can help keep your tank free of algae without the need for harsh chemicals or excessive cleaning. Other options include snails, shrimp, and even certain types of crabs. These creatures will happily munch on any algae they come across, providing a natural solution to your algae problem.

It’s important to research which type of algae-eating creature is best suited to your individual aquarium, as some may not be compatible with the other fish or plants in your tank. But with the right species, incorporating these helpful critters into your aquarium can improve its overall health and appearance, while making it easier for you to maintain over time. So, the next time you find yourself wondering how to get algae out of your aquarium, consider bringing in some new algae-fighting friends.

Algae-Eating Fish Examples

Algae-eating fish can be a great addition to your aquarium as they help keep the tank clean and healthy. Some of the most popular and effective algae-eating fish examples include Siamese algae eaters, Chinese algae eaters, and plecos. Siamese algae eaters are small and peaceful, and they do an excellent job of keeping the algae under control.

Chinese algae eaters are more aggressive and can grow up to ten inches in length, making them ideal for larger aquariums. Plecos, on the other hand, are known for their ability to eat almost anything, including algae. These fish can grow to be quite large, so it’s essential to ensure you have adequate space for them to thrive.

Another option is to use algae-eating invertebrates such as snails, shrimp, and crabs. These organisms are excellent at consuming algae and other detritus to keep the tank clean and healthy. Overall, adding algae-eating fish or invertebrates can be an effective way to keep your aquarium looking its best while also promoting the overall health of your aquatic ecosystem.

Algae-Eating Invertebrates Examples

Algae-eating invertebrates are a great solution to keeping your aquarium or pond clean and healthy. These small creatures feed on algae and other debris, preventing it from building up and creating unsightly scum. There are several different types of algae-eating invertebrates that you can use, depending on your specific needs.

For example, snails are a popular option, as they are easy to care for and can be effective at keeping algae at bay. Another great choice is shrimp, which are known for their ability to eat large amounts of algae and other detritus. And let’s not forget about the humble crayfish, which can also be great at keeping your aquatic environment clean and healthy.

By using these types of algae-eating fish or invertebrates, you can avoid the need for harsh chemicals or costly treatments and ensure your water stays crystal clear all year round. So, why not give them a try and see the difference they can make for yourself?


In conclusion, getting rid of algae in your aquarium can feel like an uphill battle. But fear not, our expert advice will have your tank looking like a crystal-clear oasis in no time. Remember to monitor your lighting, keep the water clean, add some algae-eating fish or snails, and don’t be afraid to scrub away any stubborn growth.

With a little effort and patience, you’ll be able to enjoy your aquatic habitat once again. And who knows, maybe you’ll even find yourself starting an algae farm – after all, green is the new black!”


What causes algae to grow in aquariums?
Algae growth in aquariums is caused by an excess of nutrients in the water, such as light, carbon dioxide, and nitrates.

How do I prevent algae from growing in my aquarium?
To prevent algae growth, limit the amount of light your aquarium receives daily, perform regular water changes, reduce feeding, and maintain proper filtration.

What are some natural ways to remove algae from my aquarium?
You can try adding aquatic plants, snails, or algae-eating fish to your aquarium as natural ways to remove algae.

Can I use chemicals to get rid of algae in my aquarium?
Yes, you can use algae control products, such as algicide or chlorine bleach. However, be cautious about overusing these products as they may harm your aquatic plants and fish.

How often should I clean the glass of my aquarium to prevent algae buildup?
You should clean the glass of your aquarium at least once a week to prevent algae buildup.

What should I do if my aquarium has a severe algae problem?
If you have a severe algae problem, consider doing a complete water change and thoroughly cleaning your aquarium, including decorations and filters. You may also need to reduce the amount of light and nutrients in the water.

Can algae be harmful to my fish?
Yes, excessive algae growth can lower oxygen levels in the water and create poor living conditions for your fish. Additionally, some types of algae can release toxins that can harm your fish.