Marineland Penguin 350 Review Does It Keep Your Aquarium Healthy?

marineland penguin 350 

Keeping a healthy aquarium has everything to do with the quality of water that runs through the facility. This is why a reliable filtration system is essential to get rid of contaminants and make the water habitable and pure enough for your fish.

Given the vast number of canister filters in the market, finding one that will best serve your purposes can be somewhat overwhelming, especially if you’ve never purchased one before. If you are looking for a good match for your tank size that has got all the bells and whistles without a hefty price tag, then you might want to consider the Marineland Penguin 350 Filter.

Marineland Penguin 350: Overview of Features

The Penguin 350 Filter boasts many exciting features that make it a favorite for many who are into fishkeeping either for fun or as a source of income.

Although it is ideal for supporting lightly stocked tanks, it works well for fish tanks with higher bio-loads such as cichlid and goldfish tanks. You will find it extremely useful for a wide variety of aquarium setups.

It gives you a lot of customization options to enhance the filtration of your tank or aquarium. For instance, you can complement the filter performance by adding extra bio-filtration. It is widespread for some homeowners to add some extra bio-balls and inserts.

The machine is durable and hardly ever suffers from catastrophic leaks. It retains its flow rate even when it’s dirty and operates quietly.

MarineLand Penguin 350 Power Filter 50 - 75 Gallon Aquarium, 350 GPH
  • WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
  • MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.


  • Durable construction
  • It does not take up any space inside the aquarium
  • It has a spacious interior
  • Good flow rate
  • Easy to use


  • It can be a bit noisy
  • It needs a lot of clearance

Marineland Penguin 350 – Large Filter Capacity

The Marineland Penguin 350 Filter is rated to serve aquariums and fish tanks with 50 – 70 gallon capacity. This means it should work well for lightly stocked tanks or aquariums with a total of not more than 70 gallons.

According to the product specification, the filter can process up to 350 gallons of water in one hour. This implies that if you have a tank with a capacity of 50 gallons, the Penguin 350 will process all 50 gallons of water seven times within one hour. Isn’t that impressive? You don’t come across a filter with such a feat in the market every day.

Marineland Penguin 350 – Efficient Performance

This unit also boasts of having outstanding filtration efficiency. It utilizes multi-stage filtration to produce clean and clear water. The filtration cartridges are straightforward to use and replace when dirty.

Both mechanical and chemical filtration are performed simultaneously to completely removal of solid debris, chemicals, and toxins. The process also takes care of odor removal resulting in a fresh, clean aquatic environment that is safe for your guppies. A strainer is used to ensure that the actual filter doesn’t get dirty and used up very quickly in solid debris. To cater for biological filtration, the machine is equipped with a patented bio-wheel that introduces beneficial bacteria to remove harmful chemicals like ammonia and nitrates. The only aspect of this unit you may not find interesting is that it doesn’t come with a filter indicator. This means it won’t tell you when you need to replace the filters. It’s left to you to realize the filters are due for replacement by merely looking at them.

Marineland Penguin 350 – Incredibly Easy To Use!

There are no complications in the Brita Everyday Water Filter Pitcher 10 Cup—right from the overall simple design to how you replace the filter, refill it, or even pour water. Part of what makes it super-easy to use revolves around its removable (flip-top design) lid, enabling you to easily and quickly refill it.

Besides, it features a soft-grip handle that promotes hassle-free pouring of water into the glass. Above all, it comes with a sticker filter indicator which will alert you when it’s time to replace your filter with a new one to continue enjoying the maximum reduction of contaminants from your water. The filter also reduces the manual work by using penguin 350 filters to remove impurities.


Every product available in the market, incredibly very expensive and long-lasting, must have a warranty. Warranty for a product helps to build trust for the customers. Some products are sold when already not functioning or with damage.

A warranty gives the buyers a period when they can exchange the product if it fails to function due to damages not caused by the buyer. Brita’s large ten water filter provides a warranty for its customers. Giving a contract does not always mean the product is not of high quality. Human beings are prone to errors, and some may have been caused during the manufacturing process.

Marineland Penguin 350 – Easy Installation

This unit comes with a Hang-on-back feature that makes it very easy to install. All you need to do is to hang it on the back of your aquarium or fish tank, then fasten with the clips provided, and you are good to go.

Apart from the ease of installation, hang-on-back filtration is more desirable because it is positioned outside the fish tank, not inside. In other words, the amount of space available to your fishes and plants will not be reduced by a filter inside the tank.

You will need about 5/6 inches to fit the unit behind your aquarium or fish tank. However, it’s important to note that this filter needs to be manually primed, which might be inconvenient.

Good Aeration

Apart from its high durability, one of the main selling points of this filter is the fact that it provides vigorous aeration for your fish tank. Since fish need oxygen to breathe, having adequate aeration is crucial.

The machine comes with small waterfalls positioned on the sides to direct filtered water back into the aquarium. This process helps to make more oxygen available at the depths of the fish tank. This is extremely important, especially if you’ve got a lot of guppies. However, you should know that the waterfalls can be a bit noisy.

Benefits of Marine penguin 350

Reliable and effective marine

Penguin 350 is an excellent filter, and every customer who has ever used it is impressed with the results. It is a good filter that you can use for all types of fish, such as an Oscar. They are always messy fish, especially when it reaches time for feeding. Despite all that, penguin 350 will still deliver you the best results.

It will not get damaged easily by the fish, however messy they are. The filter is very effective when it comes to filtering water. It always maintains ammonia and nitrite levels at zero. That leaves the water safe for the fish.

It reduces several impurities in the water

Not all water filters can remove all the impurities available in the water. Every buyer would prefer to go for a filter that eliminates maximum impurities. Brita filter reduces contaminants such as copper, zinc, mercury, and chlorine. The elements above form a significant proportion of pollutants in water. When consumed, they can cause serious health problems. The filter, therefore, makes the water safer for use.

Produces water with a natural odor and good taste

Contaminants change the smell and taste of water. Most people prefer water with a natural taste and smell, especially for drinking. Penguin filter is capable of removing several impurities such as chlorine and copper. Some of the contaminants can even make the water taste bitter. Brita filter, therefore, brings back the natural smell and taste of water.

It helps save a lot of money

Once you have switched to the penguin filter, you will save a lot of money. Every customer would go for a product that helps them save a lot. Penguin 350 filters will help you save money and replace 1800 single-use plastic water bottles every year. That is a lot of money that can help you do other things. If you have not bought water filters, it is the best step you can consider taking.

Greater water holding capacity

A filter that has a more extensive water holding capacity makes the purification process faster. That is because more water can be filtered at once. The filter can hold 10 cups of water that is enough to fill 324-ounce reusable water bottles. It is one of the features that attract more customers into using the product.

It is Faster

Nobody would prefer a product with low speed in carrying a task. That is, no one would love to wait for something for too long. People have other businesses to attend to. Waiting for long would mean wasting time that interferes with your plans. The filter will help you save your time and listen to other things. That is because it purifies water at a faster rate.

Discoloration and odors

Contaminants usually change the colour of the water. Fish, just like any other living thing, require a clean environment. Since its environment is water, the water is supposed to be precise; otherwise, the fish will not survive. Some contaminants make the water salty and bitter, which is not healthy for fish.

Marine penguin 350 has bio-wheel filters, which enhances efficiency. The bio-wheel filter helps in removing toxic ammonia and nitrite. Each filter also contains faster-acting black diamond premium activated carbon. The activated carbon offers biological filtration of the water. Removing contaminants such as ammonia and nitrite gives the water its natural color and smell, hence making it safe for fish survival.

Factors to Consider before buying a water filter

Various companies continue to produce water filters of different types. This has made the market flooded with all kinds of water filters. These water filters range from the simplest water filter to complex ones. They utilize membrane technology for purification, followed by disinfection using UV lamp filters.

Due to the various water filters available, most people are confused about which one to choose for their needs. If you have decided that you want to buy a water filter, here are some tips to make the right choice before you purchase.

Local water quality

Different places have different water quality based on the contaminants present. The water quality tends to differ significantly between other geographical regions. The typical water problems include sediment impurities, chlorinated water, and salinated water. The quantity and quality of these contaminants vary from one place to the other. That is what contributes to the disparity in water quality to the other.

Some regions contain a lot of water contaminants, while others have fewer. It is, therefore, vital for you to purchase a water filter based on the quality of water available in the area. That will ensure you get the best result out of your new water filter.


The type of contaminants available in the water should be an essential factor to consider before making a step to purchase a water filter. There are several dissolved contaminants in water that can affect your health. Some of them include pesticides, lead, nitrates, and bacteria. All these, when consumed into the body, may cause a severe health problem.

Homeowners can determine the number of contaminants present in their water by carrying out several water tests in the laboratory. If the water being supplied to your home contains a high level of pollutants, you need a water filter that can eliminate all these contaminants and ensure clean water for use.

Lifetime and Maintenance

Before buying a water filtration unit, you need to talk to the supplier about the maintenance costs. You need to understand the filter components that require regular replacement and their worth in the long run.

It would help determine the expected lifetime of the filter and its power usage because it will impact your electricity bills. All this information will help you make an excellent choice when purchasing a filter so that you don’t regret it after purchase.


Most whole-house water filters use advanced water purification technologies and will require electricity to operate. That means that Brita’s large 10 cup water filters will not be helpful for your home if the power supply to your property is not consistent. Therefore, If you can live in an area that has an erratic power supply, then you should opt for activating carbon filters. You also consider the amount of power they require to operate to ensure you don’t spend much electricity.


Before you purchase a water filter, you need to consider your budget. Make sure you include the initial cost of buying the filter and the maintenance cost. The initial cost can be straightforward because it is just the purchase price and the installation cost of the filter. However, the maintenance cost will vary depending on the filter you purchase. It includes the cost of maintenance and its faulty parts replacement.

The maintenance cost will always be hired if the Brita large 10 cup everyday water pitcher parts require regular replacement. If you have a tight budget, make sure that you opt for low-maintenance filtration units to help you save in the long run. Choosing a filter with a higher cost than what you have in your budget can make you have financial constraints.

Selective filtration

Water is the best because it contaminates without removing essential minerals from the water. Not many organizations do the best of equivalent filtration combinations. Filter classes and varieties vary, but final cleaning aims to achieve similar impurities for many brands.

Making the best choice involves choosing a filter with a filtration combination that will help remove the impurities to your requirements. That will enable you to achieve the required level of purity for your water.

Purification Technology

Water from different sources requires different purification technologies. Home water filters should not just be used for drinking in regions where water quality is inferior. Filtration is made mandatory for all federal purposes. The entire house filter installed from the house principal water source provides filtered water to the whole house. You will see specific water purification products for purposes other than drinking.

The level of purification you want to achieve

There are various uses of water that require a different level of purity for water. For example, drinking water requires a different purity level different from water for washing clothes. Drinking water is susceptible and requires a maximum level of purity. Therefore, it would help if you considered the purpose to which the water will be used before you purchase the water filter.

How to change penguin filters

Brita’s advanced pitcher filters don’t require them to pre-soak any longer. Remove the filter from its bag. Soak the filter in water for about 15 seconds. The next thing to do is insert the filter into the reservoir by lining up the groove in your filter with the notch in the pool. Make sure you press firmly for a tight seal.

If you have some older style, start by washing your hands before touching the new filter. Hand Wash the pitcher with a non-abrasive cleaner and rinse well. Rinse the new filter under running water. Insert the new filter. Filter pitchers of fresh water and discard before using the new filter.

How to recycle Brita filters

When you get to get a new Brita everyday water filter pitcher 10 cup filter, you should consider recycling your used one. There are several ways you can go about recycling it. You can either send it to Terracycle or a local recycling plant. We have explained below the step-by-step procedure for recycling used filters using either way.

Frequently Asked Questions

How many filters are contained in a pack?

Just one.

Will it work on the emperor 400 model?

No, it won’t be able to work. It only fits for penguin 200 and 350 model filters, respectively.

Can bags of media fit inside?

No, bags will not be able to fit inside because of the slots.

Will the cartridge media fit the penguin 150 filters?

No, the cartridge media won’t fit the penguin 150 filters. 

What is the content?

It contains a sheet of polyester filter media and a few spoon fulls of activated charcoal.

How often should you change filter media?

The carbon needs to be changed after every three weeks depending on your stocking level. Any other filter only requires to be rinsed once every month. That is when you are taking used water out of the tank during a water change.

How long does it take for a canister filter to cycle?

When you cycle a tank, it is the filter recycled and not the tank itself. That is done after every 2 to 6 weeks.

How do you replace a canister?

A canister is replaced using the following steps. 

  • Prepare the car. Park the vehicle on a flat piece of ground and find the fuel system, which will be marked on your relay panel.
  • Remove the vapor canister and locate the canister.
  • Install the new canister. Take the new canister and slide it into position next to the fuel tank.

How long do bio-wheels last?

One of the main selling points of Marineland penguins is that they are durable. It is not unusual for a marine land filter to still be going strong after even four years. They are also made of durable material.

Should I clean my bio-wheel?

The only time you should ever need to rinse a wheel is when it gets so loaded down with gunk that it stops moving. As long as the wheel stays wet, there is no need to rinse it. If you clean it here, then it will never get stuck with gunk.

Marineland Penguin 350 – The Bottom Line

Overall, the Marineland Penguin 350 bio wheel power filter is an excellent filter for the money. It works well for both novice and experienced fish keepers.

Although it requires some clearance to set up, it possesses a high power that many filters in its category cannot rival. As long as you can get past the slight noise, you should find it adequate to meet your aquarium filtration needs.

Hopefully our review has helped you decide on whether you want to purchase this model. For further inquiries, drop a comment down below.

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