Activated carbon is by far the biggest selling maintenance product in the aquarium industry and is one of the most effective absorbents currently used.
However, using activated carbon in fresh or saltwater aquarium is a controversial subject and opinions ranged from “never use it” to “can’t live without it”.

In any ecosystem, if the inhabitants are to survive, poisonous nitrogen compounds must be brought down to tolerable levels. Fortunately, mother nature provides several types of bacteria to break down the waste into less toxic compounds.

Known to scientists everywhere as Odontodactylus scyallarus, this facinating crustaceans is one of the 500 species of stomatopods recognized today. They are predatory crustaceans native to the Indo-Pacific region where they can be found on sandy, gravelly or shelly bottoms often near reefs at depths of 3–40 m. This voracious predator uses sight when hunting, waiting quietly, for its prey to come within reach, then striking using its powerful, clublike second pair of legs with immense speed.

The Bubble Tip Anemone (Entacmaea quadricolor), also known as bubble anemone, bulb anemone or simply BTA is one of the most popular anemone species in the aquarium trade. This species is native to the Indo-Pacific region including the Indian Ocean, Fiji, Tonga and the Red Sea where it is usually found attached on coral rubble or in the crevices of solid reefs. They are often found in association with a number of clownfishes including…

Some Anemone species and Clown Fish have a well-known “symbiotic” relationship. The anemone provides safety for the clownfish and in return the clownfish defend the Anemone by driving off potential predators and provides the Anemone with fertilizer (from its fences).