A shoe size is a numerical indication of the fitting size of a shoe for a person. Several different shoe-size systems are still used today worldwide. In some regions, it is even customary to use different shoe-size systems for different types of shoes (e.g., men's, women's, children's, sport or safety shoes). Read more.
Aquarium Moss 101. There are many different types of aquarium moss with a variety of different uses. There are ten common types of moss that make beautiful aquatic scenery. Below are the types and differences between them; decide which of these will be the most beneficial to your fish. Java Moss.
Filamentus algae. Filamentus algae, commonly known as pond moss or pond scum are a type of pond algae that thrives on the surface of the water and replaces the natural color of the water with green mat-like plants. This plant often grows at the bottom of the pond, and as it ages, rises to the surface.ond algae are a normal part of a healthy environment, but they can grow excessively. These plants are commonly seen floating on the surface of a pond. Unlike most plants, Algae does not have roots or leaves. They often absorb nutrients from elements in the water where they float.