Best Algae Scrapers And Glass Cleaners For Every Aquarist

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Whether you’re a freshwater tank enthusiast or a bigger fan of saltwater tanks, clean glass is essential for a healthy aquarium. Not only does it improve the aesthetics and visual effects of your fish tank, but it also allows for better viewing of the inhabitants. Thankfully, the days of painstakingly polishing the insides of your tank with a little razor blade are gone.

These days, all sorts of devices are available to make the task much easier, faster, and less frustrating. This article will discuss the best algae scrapers and glass cleaners for every beginner and experienced aquarist. We’ll also touch on some important factors to consider when making your purchase.

Comparison Table of the 5 Best Algae Scrapers and Glass Cleaners

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product 1

BRAND

API Extra-Long Algae Scraper for Glass Aquariums

DETAILS

  • Dimensions: 18 x 3.25 x 2.5 inches
  • Aquarium Type: Freshwater, Saltwater
  • Aquarium Concern: New Aquarium and Regular Care
  • Fish Type: Tropical Freshwater, Marine Fish

Pricing

product 2 image test 2 for table

BRAND

Aqueon ProScraper 3.0 Adjustable Aquarium Algae Scraper

DETAILS

  • Manufacturer: Aqueon
  • Aquarium Type: Saltwater, Freshwater
  • Fish Type: Marine Invertebrate, Tropical Freshwater
product 3 image test 3 for table

BRAND

NEPTONION Magnetic Aquarium Fish Tank Glass Algae scrapers Glass Cleaner Scrubber Clean Brush

DETAILS

  • Manufacturer ‏ : ‎ NEPTONION
  • Product Dimensions ‏ : ‎ 2.8 x 1.5 x 2.4 inches
  • Product Weight: 1.06 Ounces
product 4 image test 4 for table

BRAND

QANVEE Aluminum Magnesium Alloy Aquarium Scraper Cleaner Brush with 10 Stainless Steel Blades

DETAILS

  • Manufacturer: ‎ QANVEE
  • Product Dimensions ‏ : ‎ 26 x 2.5 x 0.5 inches
  • Product Weight: 8.01 Ounces
product 5 image test 5 for table

BRAND

Continuum AquaBlade P Short Acrylic Safe Algae Scraper

DETAILS

  • Manufacturer ‏ : ‎ Continuum Aquatics
  • Product Dimensions ‏ : ‎ 1 x 1 x 1 inches
  • Product Weight: 1.45 Ounces

Types of Algae Scrapers and Glass Cleaners

An algae scraper is a device used to remove algae from an aquarium glass. Many different types of algae scrapers and glass cleaners are available on the market, each with its unique set of features.

The most basic type are handheld scrapers, a piece of plastic or metal with a sharp edge. These are the least expensive and most basic type of algae scrapers but lack the degree of customizability seasoned aquarists prefer. More expensive versions come with various attachments, including a plastic scraper attachment that’s gentler on acrylic surfaces and a stainless steel scraper attachment for tough layers of algae.

If conventional scrapers aren’t for you, consider an algae scraper brush with cleaning pads. These cleaning brushes are typically made of nylon or polyester and are designed to clean stubborn algae off aquarium glass without scratching. You may need to go through some trial and error to identify a scraper brush suitable for your aquarium, as some are too stiff and can damage soft corals, while others are not stiff enough and won’t do a thorough job of cleaning.

Another type of algae scraper that’s becoming increasingly popular is the magnetic algae scraper. Magnetic cleaners rely on two magnets, one of which is attached to the outside of the aquarium glass, while the other is attached to a piece of flat sponge or other material. As the stronger magnet on the outside of the aquarium is moved, the sponge follows and scrubs away algae in its path.

Choosing The Right Tank Scraper: Buyers’ Guide

No matter which type of algae scraper you choose, it’s important to get one that’s right for your needs. Here are some factors to keep in mind when shopping for an algae scraper or glass cleaner:

woman thinking, raising her both hands with question mark

Tank Size and Shape

The first thing to consider is the size and shape of your aquarium. A larger aquarium will benefit from an adjustable length scraper that can reach all areas of the tank, while nano tanks can get by with a shorter, fixed-length scraper. Curved surfaces require a curved scraper head to clean properly, while flat surfaces can be cleaned with any simple tool that can reach all areas.

The shape of your tank also affects its wall thickness, which is important to consider when choosing a magnetic algae scraper. Keeping your fish tank clean requires a magnet that can attach securely to the outside of the glass, so make sure to check the specifications of your chosen product to ensure it will work with the thickness of your aquarium glass.

Generally speaking, most aquarists benefit from a versatile algae scraper that can be used on various surfaces. A good all-purpose aquarium glass cleaner will typically have both a plastic and metal scraper attachment and a brush attachment for tougher jobs. Some will even come with a sponge for substrate cleaning, making them true all-rounders.

Algae Type

The type of algae you’re dealing with can also affect your decision. Brown algae, for example, can be quite stubborn and may require a stiff-bristled brush to remove. Green algae, on the other hand, is much softer and can usually be removed with a soft-bristled brush or even a simple plastic scraper.

white algae on hot Springs.

Generally speaking, soft algae such as blue-green algae and black beard algae can be removed with a soft-bristled brush or a plastic scraper, while tougher algae such as green spot algae and red slime algae require a stiff-bristled brush or a metal scraper. Unsightly algae may be a nuisance, but it’s important to remove it carefully to avoid damaging your aquarium glass or decorations.

Getting rid of unwanted algae is a matter of getting the right tool for the job, so you want to make sure that you let algae type be a factor in your decision. After all, there’s no point in buying a powerful metal scraper if all you’re dealing with is some soft green algae!

Abrasiveness

A strong scraper may seem like the be-all and end-all of aquarium glass cleaning, but it’s important to consider the abrasiveness of your chosen tool. Abrasive materials such as metal or a sharp blade can wreak havoc on most acrylic aquariums, and may even damage some types of glass surfaces. A perfect cleaning job should leave your aquarium looking as good as new, so you don’t want to risk scratching or marring the surface with a too-aggressive algae scraper.

Generally, a glass aquarium can handle a metal scraper without issue. Still, using a purpose-built acrylic scraping blade or a soft-bristled brush with a quality sponge on an acrylic aquarium is best. These days, you can even find an acrylic blade explicitly designed for use on delicate surfaces, so your options truly are endless!

Of course, complete cleaning remains important, but you also don’t want to do more harm than good in the process. An overly-abrasive aquarium cleaner can damage your aquarium’s surface, so even if you own a glass fish tank, it’s best to consider the type of algae you’re dealing with before making your final decision.

Handle Design

Male hand cleaning aquarium using magnetic cleaner.

One important but oft-overlooked aspect of algae scrapers is the handle design. A good algae scraper should have a non-slip handle design that’s comfortable to grip and easy to control. After all, you don’t want your aquarium brush or scraper slipping out of your hand in the middle of a tough cleaning job!

On top of a non-slip handle surface, you also want to look for ergonomics. For instance, a chunky handle with comfort grip can help to reduce fatigue during extended cleaning sessions. There’s even a specific type of scraper with a hollow design that can be filled with water to add weight and increase scrubbing power – perfect for those tough jobs.

The best algae scrapers will have a comfortable, ergonomic handle that’s easy to grip and won’t slip out of your hand, even when wet. For maximum durability and versatility, you should also look for a model with a telescoping handle and one that can handle being immersed in saltwater aquariums. These features will make your algae scraper an invaluable tool that can be used for years to come.

Reusability

Last but not least, a quality product is designed with durability and reusability in mind. After all, you don’t want to replace your algae scraper every few months! For instance, a good algae scrubber will be designed with a hyper-durable piece of extension rod that can be affixed to a myriad of replacement sponges and used for years to come.

close up view of a magnetic aquarium cleaner

Under some circumstances, you may need to rely on manufacturer-specific replacement parts to keep your scraper in top shape. However, these should only be viewed as a last resort – after all, who wants to have something with special plastic blades if there are more versatile options available? Ideally, you should be able to find your removable blades easily – no matter what type of algae you’re dealing with.

Of course, reusability also depends on how easy it is to keep your brush head clean, or slip your brush pad out for a thorough cleaning session. A good-quality algae scraper will be easy to disassemble and clean because even scrapers used on the cleanest freshwater aquariums can start to harbor bacteria over time.

Selecting the best algae scraper for your needs doesn’t have to be rocket science – but it is important to consider the type of aquarium you own, the type of algae you’re dealing with, and the handle design that will work best for you. With a little bit of thought, you can find an algae scraper that will make short work of even the most stubborn algae growths – without damaging your aquarium in the process!

How To Use Algae Scrapers: Tips and Tricks

After you’ve selected the perfect algae scraper for your needs, it’s time to get down to business and start cleaning! Here are a few quick tips and tricks to get the most out of your new algae scrubber:

  • Algae magnets work best if your priority is minimum water disturbance because they don’t require that you stick your arm into the tank. Simply place the magnet on the outside of the glass, and move it around until the algae are gone. However, these models can be more difficult to maneuver and are not always as effective at more complicated procedures.
  • Aquatic animals in seawater aquariums have highly specific water parameter requirements. Even the slightest increase in organic matter can wreak havoc on these ecosystems. As such, staying on top of algae cleanings is extra important. Keep your glass transparent and your critters happy by scraping away algae growths as soon as you spot them.
  • A tube brush is a great tool for getting into hard-to-reach places, like the nooks and crannies of coral. Gently insert the brush into the crevice, and wiggle it back and forth to loosen debris. These brushes can also be used in a wide range of applications, but they’re especially useful for delicate jobs.
  • Rather than purchase a dedicated gravel rake, consider using an algae scraper with a flat head attachment. These models are just as effective at cleaning gravel and offer greater versatility since you can also use them for other purposes.

5 Best Algae Scrapers and Glass Cleaners

Ready to purchase an algae scraper of your own? We’ve rounded up five of the best products on the market to get you started.

1. API Extra-Long Algae Scraper for Glass Aquariums

API Extra Long Algae Scraper for Acrylic Aquariums
  • Dimensions: 18 x 3.25 x 2.5 inches
  • Aquarium Type: Freshwater, Saltwater
  • Aquarium Concern: New Aquarium and Regular Care
  • Fish Type: Tropical Freshwater, Marine Fish

The API Extra-Long Algae Scraper for Glass Aquariums is the perfect tool to keep your aquarium looking clean and clear. The 18-inch handle allows you to reach all areas of your aquarium, no matter the size. You’ll no longer need to get your hands wet with this algae scraper, as the long handle will do all the work for you.

Additionally, the scraper comes with a scrubbing pad to help remove stubborn algae and build-up. This pad is double-sided and features different textures on each side. One side is for light scrubbing, while the other is for tougher jobs. This allows you to clean your tank without causing unsightly scratches to your precious glass tanks.

One possible downside of this algae scraper is its long handle, and large scrubbing pad can be a little awkward to use. You may find it difficult to maneuver the scraper around without knocking over decorations if you have a smaller aquarium. However, the extra long handle is perfect for larger tanks. On the whole, however, this is a great algae scraper that will clean your water tank with ease.

PROS

  • The extra long handle is perfect for large aquariums
  • The scrubbing pad is double-sided and effective
  • Comes with a light and heavy-duty side

CONS

  • The long handle and large scrubbing pad can be difficult to maneuver in smaller tanks
  • May be too large for some aquariums

2. Aqueon ProScraper 3.0 Adjustable Aquarium Algae Scraper

Aqueon ProScraper 3.0 Adjustable Aquarium Algae Scraper
  • Manufacturer: Aqueon
  • Aquarium Type: Saltwater, Freshwater
  • Fish Type: Marine Invertebrate, Tropical Freshwater

With multiple replacement blades and an ergonomic handle with a non-slip grip, the Aqueon ProScraper 3.0 is a great choice for anyone looking for an algae scraper. This scraper comes with both a plastic and metal blade, so you can use it on both glass and acrylic tank walls. The best part of its metal blade is its rust-proof qualities – there are zero reviews of rust on this part of the scraper.

The Aqueon ProScraper also has an extendable handle, so you can reach all areas of your aquarium, regardless of size. The handle also has a non-slip grip, so you can scrap away at that tough algae without worry. As an added bonus, the scraper comes with a food feeder attachment, allowing you to feed your pets fun and interactively.

At an MRSP of $19.99, this scraper unfortunately falls on the pricier side. Additionally, the food feeder attachment may not be suitable for all types of food. However, if you’re looking for an algae scraper that can do it all, the Aqueon ProScraper 3.0 is a great choice. Its convenience and versatility make this scraper a top pick for anyone with an aquarium.

PROS

  • Comes with both a plastic and metal blade
  • Extendable handle is perfect for large aquariums
  • Non-slip grip ensures a tight hold
  • Comes with a food feeder attachment

CONS

  • Pricier than some other options
  • The food feeder attachment may not be suitable for all types of food

3. NEPTONION Magnetic Aquarium Fish Tank Glass Algae scrapers Glass Cleaner Scrubber Clean Brush

NEPTONION Magnetic Aquarium Fish Tank Glass Algae scrapers Glass Cleaner Scrubber Clean Brush
  • Manufacturer ‏ : ‎ NEPTONION
  • Product Dimensions ‏ : ‎ 2.8 x 1.5 x 2.4 inches
  • Product Weight: 1.06 Ounces

A strong magnet may not be the first thing that comes to mind when you think of an algae scraper, but the NEPTONION Magnetic Aquarium Fish Tank Glass Algae scrapers Glass Cleaner Scrubber may just change your mind. This little scraper comes with an external magnet that does all the work for you – simply move the magnet around the outside of your tank and watch as the scraper follows, removing all that pesky algae.

This scraper is also great for tight spaces and hard-to-reach areas, as the magnet can still do its job even if the scraper itself can’t reach. The NEPTONION Magnetic Aquarium Fish Tank Glass Algae scraper is also one of the more affordable options on this list, with an MRSP of only $6.99. Cleaning a thick algae layer will always involve elbow grease, but this scraper will make the job much easier.

However, one downside of this scraper is that it may not be suitable for larger tanks. You’ll also want to be careful not to put the magnet too close to your fish tank inhabitants, as it may disturb them. Overall, the NEPTONION Magnetic Aquarium Fish Tank Glass Algae scraper is a great choice for anyone looking for an affordable and easy-to-use algae scraper.

PROS

  • The external magnet does all the work for you
  • Great for tight spaces and hard-to-reach areas
  • One of the more affordable options

CONS

  • May not be suitable for larger tanks
  • The magnet may disturb your fish if it gets too close

4. QANVEE Aluminum Magnesium Alloy Aquarium Scraper Cleaner Brush with 10 Stainless Steel Blades

QANVEE Aluminum Magnesium Alloy Aquarium Scraper Cleaner Brush with 10 Stainless Steel Blades for Fish Reef Plant Glass Tank
  • Manufacturer: ‎ QANVEE
  • Product Dimensions ‏ : ‎ 26 x 2.5 x 0.5 inches
  • Product Weight: 8.01 Ounces

Sometimes, the tried and true method is the best method. The QANVEE Aluminum Magnesium Alloy Aquarium Scraper Cleaner Brush may not be the most innovative scraper on this list, but it’s one of the most effective. This scraper comes with 10 pieces of blades, making short work of even the toughest algae.

Just because this scraper is old-school doesn’t mean it’s not without its perks, though. The QANVEE Aluminum Magnesium Alloy Aquarium Scraper comes with an extendable handle, so you can reach all areas of your tank. It even has a plastic blade cover for those of you who want to use it as a gravel spatula, making this a versatile tool that doubles as a sand leveler.

The only real downside of this scraper is its price – at an MRSP of $15.99, it’s one of the more expensive options on this list. However, you are getting a good amount of bang for your buck, as this scraper is built to last. If you’re looking for an effective fish tank scraper with replaceable blades, the QANVEE Aluminum Magnesium Alloy Aquarium Scraper is a great choice.

PROS

  • Comes with 10 stainless steel blades
  • Extendable handle helps you reach all areas of your tank
  • Can also be used as a gravel spatula

CONS

  • One of the more expensive options on this list

5. Continuum AquaBlade P Short Acrylic Safe Algae Scraper

Continuum AquaBlade P Short Acrylic Safe Algae Scraper
  • Manufacturer ‏ : ‎ Continuum Aquatics
  • Product Dimensions ‏ : ‎ 1 x 1 x 1 inches
  • Product Weight: 1.45 Ounces

Sometimes, the best things come in small packages. The Continuum AquaBlade P Short Acrylic Safe Algae Scraper is a perfect example of this – despite its small size, this scraper is one of the most effective on the market. This scraper comes with two interchangeable blades – one for scraping algae off the glass and one for scraping algae off the acrylic.

The secret to this scraper’s ability to work effectively without damaging your tank lies in carefully selected materials. If you opt for the self-lubricating plastic blade, you can rest assured knowing it is softer than acrylic. This means it can get rid of algae without damaging your plastic fish tank. The steel blade is also designed to be gentle on surfaces, making it a great choice for those of you with delicate tanks.

The only real downside of this scraper is its size – at just 1 x 1 x 1 inches, it may not be suitable for larger tanks. However, it’s more than adequate for most tanks, and its compact size makes it easy to store. The Continuum AquaBlade P Short Acrylic Safe Algae Scraper is a great choice if you’re looking for a small but mighty algae scraper. Just add a metal blade attachment or two, and you’re set!

PROS

  • Comes with two interchangeable blades
  • Soft plastic blade is gentle on surfaces
  • Compact size makes it easy to store

CONS

  • May not be suitable for larger tanks

The Takeaway

A quality brush or algae scraper is more than just an assistant tool that will keep your tank neat and tidy- it’s an investment. The right algae scraper will make your life as an aquarium owner much easier, and can even help you avoid costly mistakes. Coupled with regular water changes, the right algae scraper can help you keep your tank in tip-top shape.

We hope this article helped you choose the best algae scraper for your needs. Happy scraping!

Wanda is a second-generation aquarist from the sunny tropics of Malaysia. She has been helping her father with his freshwater tanks since she was a toddler, and has fallen in love with the hobby ever since. A perpetual nomad, Wanda does her best to integrate fish-keeping with her lifestyle, and has taken care of fish in three different continents. She loves how it provides a nice break from the hustle and bustle of life.

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