Inches. -. 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).
Types of Algae. Brown Algae (Diatoms)  This is the first type of algae that begins growing in a new aquarium. It usually grows on the gravel and glass. Unlike other types of algae, this type requires silicates in order to grow. By increasing light levels, this type of algae can be replaced by the more beneficial green algae. Brown algae can easily be scraped off the glass.
Some types of algae float and multiply in the water. Other types of algae grow on objects such as the rocks, ornaments, gravel, plants, and the sheets of glass or plastic in your fish's home. All Algae is not Green. There is also black algae, brown algae, red algae, and several other color variations.ore importantly there is also information about why algae is growing in your fish's home. Your fish's home might be an aquarium, a fish bowl, or a pond. The comments on this page apply to all three types of fish homes. The ad below links to this advertiser.