From Wikipedia, the free encyclopedia. The Illness-Wellness Continuum is a graphic illustration of a wellbeing concept first proposed by John W. Travis in 1972. It describes how wellbeing is more than simply an absence of illness, but also incorporates the individual's mental and emotional health.
Those who work with the tanks are an integral part of the staff at an aquarium, as they not only care for the fish but also keep the aquarium and the aquarium curatorâs best interests in mind. It is required that an aquarist have a bachelorâs degree to get hired into the position.It is preferred that the degree be in either environmental engineering, biology, science, or veterinary science, though this is not necessarily a requirement.t is required that an aquarist have a bachelorâs degree to get hired into the position. It is preferred that the degree be in either environmental engineering, biology, science, or veterinary science, though this is not necessarily a requirement.
A fully grown angelfish can be the size of the palm of someone's hand (about 4-6 inches nose to tail). As for height they can grow to more than ten inches. They usually have an inadequately sized aquarium. For success, you will need a 29 gallon tank for a single fish or a 40-55 gallon for two or three angelfish.Keeping a pair of angelfish is best because they usually become territorial. The maximum safe number is no more than three angelfish in a single tank.s for height they can grow to more than ten inches. They usually have an inadequately sized aquarium. For success, you will need a 29 gallon tank for a single fish or a 40-55 gallon for two or three angelfish.