Get to know Seachem’s fish tank filters

Get to know Seachem’s fish tank filters

Everything you need to know

Seachem supplies a comprehensive range of fish tank filters.

Our filtration products will remove copper, nitrate and phosphate, along with other biological and chemical contaminants from your tank.

It is important to learn about each of the aquarium filters we supply so that you can make an informed decision about how to keep your tank clean.

Which aquarium filter do I need?

If you’re shopping for a filter for your fish tank, you must first determine what is present to be filtered from your tank and in what amounts you need to use each filtration media.

Below is a comprehensive list of all fish tank filters that Seachem supplies and what they are used for.

If you require further information before making your aquarium filter purchase or using your products, please check our FAQ page or feel free to reach out to us for help and advice.

Fish tank filters for the filtration of chemicals, including copper and phosphate:

CupriSorb – for the filtration of copper.

Copper is always present in the sea and in marine aquariums.

In aquariums, where there is much less water than in the sea, copper levels can become dangerously high.

Use water testing to determine copper levels and, when needed, use CupriSorb to quickly and effectively reduce those levels.

Purigen – helps to control levels of ammonia and nitrate.

Purigen is far and away the best quality fish tank filter on the market.

It’s easy to use, has a big impact and changes colour when exhausted so you can clearly see when it needs to be replaced.

Renew – helps to control levels of ammonia, nitrate and phosphate.

Less aggressive than carbon renew is suitable for reef and planted aquaria, as well as beneficial in soft water aquaria.

PhosGuard – fish tank filter for silicate and phosphate.

Rising phosphate levels can cause algae to bloom and reduce oxygen levels in your tank.

PhosGuard quickly removes phosphate and silicate from marine and freshwater tanks.

SeaGel – a blend of Matrix Carbon and PhosGuard. A powerful carbon for the removal of organic and colour impurities.

Pond PhosGuard – a non-herbicidal, environmentally friendly solution to the problem of phosphate control in ponds.

Fish tank filters for the filtration of biological contaminants, including nitrate:

Matrix Carbon – a unique activated carbon that removes aquarium organic matter.

Matrix – a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste in ponds.

Pond Matrix – a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste in ponds.

DeNitrate – removes nitrates, nitrates, ammonia and organics.

When buying any filter for your fish tank also consider purchasing Seachem’s The Bag.
This filter bag is designed specifically for the purpose of use with each and every one of Seachem’s filtration products.

Seachem Saltwater Aquarium Products

Seachem Saltwater Aquarium Products

Only the Best for your Saltwater Aquarium

Seachem provides a comprehensive range of products for every saltwater aquarium keeper.

Whether you have a freshwater or saltwater aquarium we are guaranteed to have everything you need to keep your tank and its inhabitants flourishing.

Here we provide some detail relating to our range of premium saltwater products and why they have led to Seachem being considered the world’s leading saltwater aquarium supplier.

Our Saltwater Aquarium Products

Reef Plus – a full spectrum reef supplement for the saltwater aquarium

Seachem Marine Buffer and Liquid Marine Buffer – a buffer that safely raises marine pH to 8.3. What sets Seachem’s buffer apart from those sold by other saltwater aquarium suppliers is that our marine buffer will not raise the pH above 8.3 even if accidentally overdosed.

This makes our product both easier and safer to use than leading competitors

Calcium reactor media – provides calcium, magnesium, strontium, potassium and carbonates for optimal ionic balance, coral growth and colouration

Reef dip – a coral disinfectant, great for use before introducing new coral into your saltwater aquarium

Reef glue – bonds in seconds, even under water, with excellent durability. Reef glue can be used in freshwater and saltwater aquariums

A range of salts including reef salt, marine salt and brackish salt, plus the Seachem HydroTote 20l collapsible water bottle for aquarium keepers who choose to get their saltwater from a local store

Reef Pack Fundamentals – a selection of products for beginner reef keepers, compiled by leading saltwater aquarium supplier Seachem.

Reef Pack Enhancer – the perfect addition to the Reef Pack Fundamentals

Essential carbonates for the reef environment including:

Reef Fusion 1 and 2 – designed to restore and maintain calcium levels and alkalinity

Reef Builder – raises alkalinity without immediately impacting pH levels

A range of parameter specific supplements to maintain levels of numerous minerals and chemicals

Our Coral Nutrition Range

Reef Zooplankton – a concentrated blend of marine zooplankton, scientifically devised to promote optimum health of the reef in your saltwater aquarium

Reef Phytoplankton – a concentrated blend of green and brown marine phytoplankton, designed to provide the optimal invertebrate diet for healthy coral

With a dedicated scientific team working tirelessly to ensure that Seachem remains the world’s leading saltwater aquarium supplier, you can turn to us any time, from anywhere in the world, for all of your aquarium needs.

Seachem Digital Spoon Scale

Seachem Digital Spoon Scale

The Spoon for All your Measurements

Many of the products available for purchase from Seachem must be administered in precise doses so that is why our digital spoon scale is an ideal purchase for anyone.

An aquarium exists in a delicate balance and nobody knows that better than a dedicated hobbyist.

So every dedicated hobbyist knows the importance of being able to precisely measure the amount of any chemical or supplement being added to their tank.

This is where the our digital spoon scale is so important.

The Convenience of a Digital Spoon Scale

A digital scale is an absolute ‘must’ for aquarium keeping.

There are always things to be added into the environment.

There are plenty of things that need to be measured with digital precision, such as chemicals, foods and medications to keep your fish and plant life in optimal health.

A digital spoon scale makes life easier than does any other form of digital scale.

It’s simple, perhaps it’s obvious but for this setting it couldn’t be more useful to have the convenience of a spoon combined with the necessity of a digital scale.

And you know Seachem.

If there is a way to make the life of an aquarium keeper easier and to make an aquarium product more useful and more economical, we will come up with it! Thus this ingenious digital measuring spoon was born!

A Precise Digital Measuring Spoon

A scale is only as useful as it is precise and this is particularly true when it comes to aquarium keeping.

When we’re talking about the delicately balanced environment inside your tank then just a small amount over or under the correct dosage of many chemicals or supplements can make a big difference.

That is why the Seachem digital spoon scale has been designed to measure in increments of 0.1 – and that’s grams or ounces.

Our digital spoon scale measures up to 300g, which is more than enough for the vast majority of things that you are likely to want to add into your tank.

It’s the Little Things That Make the Seachem Digital Spoon Scale the Best on the Market

This isn’t a complex item. It doesn’t need to be.

What our digital spoon scale is, is simple to operate – with an easy 3 button operation – and corrosion resistant, which we consider to be quite important in a digital measuring spoon used around water and chemicals.

The Seachem digital spoon scale is low cost, practical, hard wearing and even comes complete with batteries.

The perfect Christmas gift perhaps?

Seachem Reef Calcium

Seachem Reef Calcium

The Best Calcium for your Reef

If you are searching for the best calcium supplement for your reef tank then read on.

There is a reason why Seachem is the world’s leading supplier of aquarium supplies. Here will will provide you with some information relating to our reef supplement range, including Seachem Reef Calcium.

The Best Calcium Supplement for Reef Tanks

Seachem is one of the world’s only independent pet supply companies.

In business for over 30 years and now sold worldwide, our products are preferred by hobbyists the world over for their innovative features and Seachem Reef Calcium is no exception. Most Seachem products are completely unique to the brand, developed by our dedicated team of scientists.

Seachem Reef Calcium is a liquid organic calcium source designed to maintain calcium levels in your tank and to accelerate coral growth.

It does this by making the maximum amount of calcium available for coral to absorb. Seachem Reef Calcium utilises chained organic calcium rather than an ionic calcium. This form of calcium is absorbed and utilized easily by the coral, with minimal energy required.

On the other hand, the charged molecules in ionic calcium require a larger amount of energy to take in. Our calcium supplement allows coral to take in as much calcium through organic chains when tank calcium levels are low, as they would through ionic calcium with much higher levels required.

Seachem Reef Calcium Will NOT Cause Algae Growth

Due to a common misconception we are often asked whether Seachem Reef Calcium contains sugars that can lead to algae growth. It absolutely does not and this product simply cannot lead to the growth of algae.

This reef supplement contains no nitrogen or phosphorus so it is biologically impossible for it to lead to algae growth.

The belief that it can is based on a faulty assumption based on the premise that polyglyconate is the same as glucose. It is not.

In fact, the presence of polyglyconate can even have the beneficial side effect of lowering nitrate levels in your tank if they are too high, because corals, as well as your biological filter, can break it down and use it as a carbon source.

Seachem Reef Calcium Used With Other Seachem Reef Supplements

Reef Calcium can be used alone but is designed to maintain, not increase, calcium levels so increased coral growth will be seen if it is used alongside one of our ionic calcium supplements – Reef Complete or Reef Advantage Calcium.

Is Seachem Reef Calcium the best calcium supplement for reef tanks? Our customers certainly seem to think so. Since Seachem products offer the best value of any aquarium products on the market you have nothing to lose by giving it a go.

Using Seachem Prime for Aquariums

Using Seachem Prime for Aquariums

What Does Prime do for Aquariums?

Seachem Prime water treatment and prime for aquarium are our top selling products worldwide and for good reason. It is by far the industry’s leading complete water conditioner.

Here we will tell you everything you need to know about why that is and what you can expect from Seachem Prime for aquarium water treatment.

In essence, Seachem Prime is a complete conditioner for both fresh and saltwater tanks. It completely detoxifies the heavy, toxic metals found in tap water, leaving a safe environment for your fish.

Specifically, it removes chlorine and chloramine while detoxifying ammonia and nitrate. It is also important to note that Seachem Prime water treatment will not alter the pH levels on your tank because it is non-acidic.

Prime for Aquariums Goes Further

Seachem Prime water conditioner is not the only water conditioning treatment on the market but it does offer a number of innovations that keep it on top.

One of the most beneficial aspects of the product is its level of concentration. Just 5ml of Prime water treatment is needed for a 250 litre tank, meaning that it lasts five times longer than its leading competitor.

As a result we can confidently say that Seachem Prime for aquariums is the most cost-effective water conditioner treatment available in the world.

Seachem Prime; for Aquarium Innovation

Being good for water, Prime water treatment is great for fish and other marine life.

Thanks to our dedicated team of scientists this product is packed full of innovations but one of the cleverest is that it encourages the natural defence systems of your fish.

While other products in this space can claim to add a slime coating to fish, the essential ions within Prime encourage fish to produce their own natural coating, as nature intended.

Another nifty little feature worthy of note is the water Seachem Prime water conditioner tackles the ammonia in your tank. While all conditioners neutralise ammonia, only Prime water treatment will leave the ammonia completely detoxified, safe and present for the bacteria in the tank to digest and remove naturally.

What’s more, Prime for aquariums will not affect the skimmer or the skimming process in your marine tank.

It will go about its business, providing a more thorough conditioning than any of its leading competitors, without causing the overproduction of foam or any other adverse effects.

Know your Prime Water Treatment

Seachem Prime water conditioner is the most thorough and long lasting product on the market – prime for aquarium use, you might say!

It’s simple to use and the only FAQ we get about Seachem Prime is ‘is it supposed to smell like this?’

The answer, invariably, is ‘yes’. Prime has a distinct, sulphur smell.

That’s normal.

That smell doesn’t mean it’s gone off, it just means that you have your hands on genuine Seachem Prime for aquariums and your fish are in safe hands!

Reasons to Choose Seachem Products

Reasons to Choose Seachem Products

Marine Aquarium Products & Reef Aquarium Supplies All in Our List of Seachem Products

Seachem and Seachem products were created by hobbyists for hobbyists.

When the company began over thirty years ago, it did so due to genuine gaps in the market.

Seachem products were developed by people who enjoy keeping aquariums in order to meet their unique needs and the needs of people like them.

Seachem remains, to this day, one of the largest independently owned pet supply businesses in the world – still run by people like you, for people like you, with the aim of supplying the best freshwater and marine aquarium products on the market, through a network of approved dealers.

The vast majority of Seachem products outperform the leading competitor products by a long, long way.

Take, for example, best selling Seachem product Ammonia Alert which lasts, on average, 9 times longer than other competing products.

Seachem marine products and reef aquarium supplies are designed to be as easy as possible to use.

An aquarium is a complex environment in which chemical levels must be kept in delicate balance in order for life within that environment to thrive.

There is a lot to consider when maintaining an aquarium so the least we can do is to make the products you need as easy to use as possible.

Many of our water testing kits, for example, require no testing at all! They simply change the colour of the water when chemicals are out of balance.

You can’t get easier than that.

Seachem Has a Reputation For Innovation

We don’t just repackage old ideas. We have a staff of scientists working diligently to create Seachem products that bring entirely new solutions to the market.

As a result of our ongoing research and development, most Seachem products are totally unique to Seachem.

You will not find comparable marine aquarium supplies with other brands and, in most cases, you will not find products as simple to use and economical as Seachem products.

Our premium line aquavitro is designed to respond to new information and technologies as quickly as they arise. This is a no compromise, premium range of reef aquarium supplies and supplies for planted aquariums.

Aquavitro is a proud supporter of the Coral Restoration Foundation, a charitable organisation working to save the backbone of marine ecology.

All Seachem products, including marine aquarium supplies, reef aquarium supplies and more are now conveniently available to buy online in the UK via operates a question and answer section on the FAQ page of the website, so you need never wonder about how to use your Seachem Products.
There are a selection of questions already answered on that page but our technical experts are on hand to answer your specific enquiries about our unique product line.