The Pomacanthid family is arguably the most well-loved family in the marine hobby. The name is a derivation of two latin words; Pom, which means “cover” and acanthus, which means “spine”. This name is a reference to a feature shared by all members of the family; a spine on the gill cover. Sadly, many of these beautiful fish are tank busters, and many fish keepers are unable to keep them properly. The family consists of 7 genera and a total of 74 species and range in size from 5.5cm all the way to 60cm. Many hobbyists purchase members of this family as beautiful juveniles. Unfortunately, a large number of the larger angels are not nearly as attractive as adults as they are as young. There are a few exceptions to this, but generally this does hold true for the large angels. The Dwarf Angles do not suffer this same fate as most of them remain beautiful and colorful throughout their entire lifespan.
Though in smaller reef aquariums, the organisms in live rock and sand process Nitrate, reducing it naturally to zero. In larger reefs, that is over 90 gallons in size, with more life in, filters can help in keeping it at zero
However, there are several types of filtration that can help keeping your water quality high.