Posts Tagged Filters

Using Activated Carbon

Using activated carbon is a means of removing certain organic substances from the seawater. In addition, it prevents the seawater from taking on a yellowish tinge, the substance that causes this is termed gilvin. Activated carbon, which is granular, is often placed in a canister filter which is also used for mechanical filtration purposes, as a good flow of water through the substance is achieved. Other filters can be used of course. Some aquarists simply hang a bag of activated carbon in a part of the aquarium or sump, but this practice has to be questionable because of the flow of, or rather lack of flow of, seawater through the substance.

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Nitrate And How To Reduce It

All salt water aquarists will know about nitrate, or at least I hope so. Nitrate (NO3) is a product of the nitrogen cycle, and follows on from Ammonia/Ammonium (NH3/NH4) and Nitrite (NO2). The full nitrogen cycle will lead to nitrogen gas which is removed by gas exchange at air/water interfaces.

Salt water livestock are generally affected by different levels of nitrate. I say generally because both fish and corals, also shrimps etc, have varying degrees of tolerance.

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Feeding a Deep Sand Bed

In the salt water aquarium a deep sand bed (DSB) is a very positive addition to the system. In addition to its filtration capabilities, it is interesting in its own right.

Why so interesting? This is because, if the DSB is functioning properly, it will have a population of tiny life forms that have made it their home. In fact, a population of these creatures is important as this assists the DSB to function correctly.

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Using Mangroves As A Filtration Method

Using mangroves as a type of filtration in a salt water system was started by Julian Sprung several years ago. He planted a mangrove into one of his aquariums just to see what would happen and to his surprise it actually started to grow and flourish. An article was produced by Julian Sprung detailing the benefits of utilising mangroves in an aquarium and many aquarists started to utilise mangroves as an additional form of nutrient export.

Mangroves can be grown in various areas of the marine aquarium system. They can be grown in the sump, the refugium, the mud bed, a separate designated aquarium or even in the display aquarium if you so wish.

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Cryptic Zones

There is a scientific term used which is called ‘the [tag-tec]gradient concept[/tag-tec]’. This term basically describes how various marine organisms can be graded according to the amount of light which they receive. There are two zonal categories which are most commonly used, these are the exposed and the semi exposed

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The Deep Sand Bed – One Of The Most Effective Filtration Methods.

A deep sand bed is probably one of the most common additions to live rock filtration utilised within the marine aquarist world at the moment. The other is called a plenum which I will cover in a future post.

A lot has been discovered over the years in relation to sand beds perhaps the biggest of which is the importance of the sand particle size and the depth of the bed.

Let’s concentrate on the sand particle size first of all.

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The Nitrogen Cycle

We’ve all seen salt water aquariums in books and on the internet as well as in our homes. They come in all sorts of sizes and shapes, some being enormous, then all the way down in size to a nano aquarium. Whatever size they are and whether they are fish only or reef, they rely on nature’s life support system, the nitrogen cycle.

Any aquarist needs to basically understand the nitrogen cycle. There is no requirement to become a scientist, just know what is going on. Then the dangers of stressing the aquarium will be better realized (as an example overfeeding, perhaps the main problem with fledgling aquarists?).

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