What do you get if you cross high water clarity with corals that flourish? Answer: Red Sea Reef Spec Carbon – and it’s no joke either! We need to talk to you about Red Sea’s new innovative Carbon – a reflection of the brand’s cutting edge technology and unprecedented prowess in supplying world class marine and reef water products, whether that be in the form of aquariums, additives or this absolute beauty. Red Sea have blended years of research and scientific knowledge to engineer this special carbon for your reef environment which allows you to achieve a world of perfect ideals between four glass walls.  Water purity. Bright lively aquatic fish. Vibrant, healthy corals.  



Make no mistake that Red Sea Reef Spec Carbon which is available in three different can sizes: 500ml, 100ml and 2000ml is a cut above the rest when it comes to comparing those carbons currently available on the aquarium hobby market, which is good news for those like you guys and ourselves whose only option is to choose quality and functionality over all other aspects when deciding on products for our pride and joy. Reef aquariums are closed artificial ecosystems which play home to a host of delicate living creatures, all of whose health and well-being rely on a set of variables that require constant monitoring. That’s why this specialised product from the masters at Red Sea can be trusted to carry out its job with absolute precision and perfection. 



So let’s take a look at why Red Sea’s Reef Spec Carbon is the ultimate choice for marine and reef environments. Well – it’s all down to a set of unique characteristics and a number of features that Red Sea couldn’t be more proud of. Why? Because this carbon has been proven to produce the highest overall score across the range of parameters in carbon testing carried out at the brand’s headquarters. These measures include: ash levels, product density, mesh size, pore volume, methylene blue number, total surface area and iodine level. These may all seem quite simple expectations when looked at in a list-form like this however, no other brand matches Red Sea’s standards in all seven areas at once. Activated carbon is a porous material with a sponge-like structure. Produced from a selection of organic materials that have a high carbon content such as coal, anthracite, coconut shells and nutshells, the carbon has an impressively large surface area and is activated through thermal decomposition and physical modification. This activation increases its filtration ability. What’s even better is that less Carbon is needed to achieve these results than those of lower quality carbons on the current market. It will also need replacing less frequently providing an effective, cost efficient solution for aquarists whilst delivering quality results. A micro/macro porous structure has been the innovative turning point for Red Sea with their newest innovation, as it ensures high total absorption capacity thus rapid extraction of pollutants found in the water.  Red Sea Reef Spec Carbon offers ultra-low ash content, ultra-low phosphate output whilst PH levels remain unaffected – genius!



So - this special grade of activated carbon is capable of removing those pollutants found in marine and reef aquariums to provide idealistic levels for all aquatic species living within these environments, including SPS corals. That bit is quite self-explanatory, right? So let’s look at what these pollutants consist of. Phenols, proteins organic acids, fats and carbohydrates can all accumulate within the water over time. If these organic metabolic leftovers are not removed correctly, they can have an adverse effect on the effect of an aquarium and its inhabitants. The leftovers which soon turn toxic to aquatic life, can lower the PH of the water, creating ideal conditions for bacteria and algae to break out and take hold of your water. Waste products suspended in the water will soon turn a yellowish colour which in turn, will steal around 25% of light within the violet-blue end of the spectrum in an aquarium. This light is responsible for coral growth and so stripping out these organics is crucial for successful reef keeping. So now we are beginning to see just how effective and important Red Sea Reef Spec Carbon actually is, along with its integral role in any reef or marine aquarium, right?!



Red Sea Reef Spec Carbon completes the final stage in the mechanical filtration process, because the larger part of the internal surface area of the water absorbs those small organic molecules that cannot be either physically removed by protein skimming or consumed and dealt with by regular mechanical filters. This gives Red Sea’s Carbon a unique and highly important role.  The organic pollutants found in water after protein skimming has taken place, are, as scientists refer to - in the “iodine and metholine blue numbers”. Red Sea Reef Spec Carbon meets the brand’s fundamentals: cleanliness, total absorption capacity, speed of capacity and low phosphate output. The carbon effectively eliminates the activity of many unwanted microorganisms inside aquatic water whilst cleverly increasing the total oxygen demand (TOD) thus reducing Redox potential. And for those of you who want a little more information on how the Carbon works -  the attractive forces between the organic molecules and the internal surfaces of the carbon are far greater than the attractive forces that keep them dissolved in solution – so the whole process works by absorption! The surface area inside the carbon is used up and it becomes saturated with organics.



The results within a tank that has undergone carbon treatment of this quality are instantly recognizable as Red Sea’s ground-breaking work. Using their Reef Spec Carbon in your aquarium ensures that the organic pollutants have less time to accumulate and decompose in the water due to the fast absorption quality of the carbon, but for best results we have the following advice to share with you before you go!

  • The carbon should be placed in a location where there is an active flow of 1000-1500 lph (250-400 gph) per 50 gr carbon for standard organic load and yellow tint removal.
  • Post medication treatment - 100gr per 200 litres for a period of ONE week.
  • Ozone post-treatment - 50gr per 50mg/hr of ozone injection to remove residual ozone.  Once carbon reaches 50% of its original volume, replace.
  • Your Carbon should be replaced regularly. We recommend every 2 months or when the carbon becomes saturated with organics, as this is when it may begin to absorb trace elements from the water!
  • The carbon should be rinsed under the tap to remove any fines.
  • In order to ensure that all of the air has been released from your carbon (to stop is floating) we recommend letting your carbon soak in RO water to release the air.