sp refers to a planaria where the actual species is undetermined...or sometimes because several species of planaria have similar appearance or behavior and have been used in a study.
The planaria scientific name is called Planariidae. It is not a species so the binomial name could not be determined. Planaria are non-parasitic flatworms.
Kingdom:AnimaliaSubkingdom:EumetazoaSuperphylum:PlatyzoaPhylum:PlatyhelminthesClass:TurbellariaOrder:SeriataSuborder:TricladidaFamily:Planariidae
Corys will eat planeria corys need small amounts of food
Planaria worms will occur naturally if you have a well balanced/planted tank and continued occupancy by larger species of fish (like Cichlids) that will not eat them because they are too small.
Planaria are eaten by various predators in their natural habitat, including other invertebrates such as beetles, nematodes, and predatory flatworms. Some small fish, amphibians, and certain species of birds also consume planaria. Additionally, planaria serve as hosts to parasitic organisms that feed on them.
Planarian is a regenerating non-parasitic flatworm. Most planarian are striped or lined and some of the large type has bright colors.
The planaria class is Turbellaria
planeriacomes under kingdom animalea
Usually a planaria regeneration experiment involves cutting the planaria into different parts. The head can be separated from the tail or the planaria can be cut lengthwise, etc. After cutting the planaria, it will be observed for few days noting how the organism regenerate its lost body parts. Read more on planaria regeneration on t he link provided below.
Planaria prefer dark environments
a new sp means that sp. which has not been seen earlier by anyone(people or scientists)/has no record in anywhere.
A few easy-to-keep species are:cryptocoryne sp.(crypts)microsorum pteropus (java fern)elodea sp. (anacharis)taxyphillum barbieri (java moss) [scientific name disputed]