Home » Author Archives: Andy Rapson

Author Archives: Andy Rapson

Stress in Fish


stress in fish

dove investire What is Stress Stress in fish should be taken seriously because it is real and it has many causes most of which may go unnoticed by aquarist especially when new to the hobby. When a fish encounters an unfavourable stimulus which are likely to adversely affect the fish it reacts in a to protect itself. Such unfavourable stimuli are referred ...

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The Genus Steatocranus

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steuern zahlen für binäre optionen Introduction Steatocranus are an interesting group of fishes from a small genus comprising of nine species of rheophilic (living in flowing water) African cichlids. This genus is a personal favourite of mine ever since seeing my first photo of Steatocranus casuarius many years ago. All Steatocranus have reduced swim bladders which helps them to sink to the bottom and shelter ...

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My Experience with Aponogeton madagascariensis, The Lace Leaf Plant

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http://actioncooling.com/?kiko=bin%C3%A4re-optionen-deutscher-anbieter&7c4=76 binäre optionen deutscher anbieter Introduction I had recently ventured in to the world of planted aquariums using the Dennerle system. Basically the system comprised of a heater cable laid on the floor of the tank and covered with a mixture of silica sand and compost which had been mixed half and half by volume, this layer was about 2.5cm deep. Then there was a ...

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Binomial nomenclature

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Melanochromis auratus

binära optioner kurser Introduction What is Binomial nomenclature? Everyone will be familiar with scientific names which are used for all living things. Every species is given two names, the first name is the Genus and the second name is the species. The genus name is written first and begins with a capital letter, all the other letters are lower case. The species name ...

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pH and the Fresh Water Aquarium

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aquarium ph

Introduction The pH scale goes from 0 to 14. When the pH is 7 the water is neutral which means it is neither acidic nor alkaline. If the pH drops below 7 then the water is acidic and the lower the pH the more acidic the water. If the pH is above 7 then the water is alkaline and the ...

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Ammonia, Nitrite and Nitrate in Detail


Ammonia, nitrite and nitrate Ammonia: (NH3) is found in two forms, the very toxic ammonia – NH3 and the far less toxic ammonium NH4. They will both be present at the same time but the ratio depends on the pH of the aquarium water. Low pH means that there will be less ammonia and more ammonium and a high pH ...

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