Because they are designed to be isolated 'copies' of the natural environment that the fish and other aquatic creatures would be found in.
Space itself is not considered an ecosystem in the traditional sense, as it lacks the biological components and interactions that define ecosystems on Earth. However, environments like the International Space Station (ISS) can be viewed as micro-ecosystems, where human life and various organisms interact within a controlled environment. In this context, space can host ecosystems, but the vast expanse of outer space remains largely inhospitable and devoid of life as we know it.
In fresh water aquatic ecosystems unicellular, colonial and filamentous micro-organisms comprise the most important producers. A large number of fauna depend on these producer micro-organisms.
low humility
low humility
Micro Means extremely small, we can only see micro-organisms in a microscope, Every Living creature has micro organisms on and in there body! even humans possess micro-organisms, such as bacteria, fungi and a virus, we all have these.
Most folks only consider them a true ecosystem if they are self sustaining, which almost all aquariums are not.
Ultimate Aquariums - 2012 Ultimate Aquariums 1-1 was released on: USA: 12 October 2012
Many companies make aquariums. Germany is a major exporter of aquariums and aquatic products. companies like jewel,tetra,top fin,and bi-orb make aquariums.
In fresh water aquatic ecosystems unicellular, colonial and filamentous micro-organisms comprise the most important producers. A large number of fauna depend on these producer micro-organisms.
low humility
low humility
Signatures with Aquariums in Forums, Profiles with Aquariums, and it happens by chance.
The Aquariums of Pyongyang was created on 2001-11-22.
Biodiversity is the variety of all living things such as the different plants, animals and micro organisms, the genetic information they contain and the ecosystems they form.
Adorra, Liechtenstein, and Monaco are all considered micro states within the European Union. San Marino, and the Vatican city are other examples of micro states.
for Plato users its true :)
The minimum length available for a micro usb cable is 3 mm. The micro usb cable is considered to be far more durable that the mini usb cable. You can purchase a micro usb cable at Staples.