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Marine Topics -
FAQs
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Written by Nick Dakin
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 Q) How much importance should be given to water circulation in the marine aquarium?
A) The 'big' topics such as filtration, lighting, feeding and stocking nearly always overshadow water circulation to such an extent that it is almost dismissed as unimportant. This a pity because good water movement within any aquarium is vital to the health and well-being of just about any livestock you care to name.
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Marine Topics -
FAQs
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Written by Nick Dakin
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 Q) I have limited lighting over my aquarium, although the water quality is high. Is it possible to keep invertebrates that do not require high intensity lighting?
A) Mention invertebrates to most aquarists and they will immediately associate them with high intensity lighting such as metal halides. In truth, there is a vast selection of invertebrates that require very little, if any, light and these can be kept quite successfully with a little planning. Firstly, however, it might be useful to understand why some invertebrates demand high intensity lighting. In this way we can more easily identify those species that will thrive under low-light regimes. |
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Marine Fish -
General Marine Articles
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Written by Nick Dakin
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 Pondering the mysteries of the universe one evening (you know how one does), a thought crossed my mind ... WOMEN! (Now chaps, don't get too excited!) Just why is it that so few women get involved with the marine side of the aquarium hobby? The question was a serious one and did not elicit a ready answer. I'm not talking about the wornan who helps her partner lug the odd bucket around at water change time but the 100% committed hobbyist. Think about it for a moment, see how many you know; not that many, if any, I would care to venture. A strange situation, indeed. Is there a reason why more women should not get involved, or does the hobby hold so little attraction? Who better to ask than some of those few already firmly involved. A look at their fishkeeping history rnight also furnish some clues. So with that in mind I set off to interview four likely candidates in what turned out to be one of the most interesting assignments I'd undertaken in a long time,
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Marine Topics -
Water Quality
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Written by ATF
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Below is a guide to what your general water quality parameters should be. Aquariums with poor water quality will cause inhabitants to become more prone to disease. Environmental Parameters Fish Only Systems - temperature 24°C to 27°C
- salinity 1.022 to 1.026, whatever your salinity in this range, being constant is most important
- pH 8.3
- ammonia 0 ppm, may increase during feeding, but should drop to 0 ppm within 2-3 hours
- nitrite 0 ppm, may increase during feeding, but should drop to 0 ppm within 2-3 hours
- nitrate up to about 50 ppm, but have seen healthy live stock in a well stocked system of 150 ppm (included Tangs, Butterflies and Angels, but I would not recommend it)
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Marine Topics -
Water Quality
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Written by Nick Dakin
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 It would be true to say that the majority of aquarists never test for dissolved oxygen (0 2). Nevertheless, oxygen is an extremely important gas and essential for the survival of the vast majority of livestock that we keep. This is, of course, most evident in fish, which draw oxygenated water in through their mouths, passing it over oxygen extracting membranes within the gills and expelling the depleted water out through the gill slits. |
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