Refugee status is a form of protection that may be granted to people who meet the definition of refugee and who are of special humanitarian concern to the United States. Refugees are generally people outside of their country who are unable or unwilling to return home because they fear serious harm. For a legal definition of refugee, see section 101(a)(42) of the Immigration and Nationality Act (INA). You may seek a referral for refugee status only from outside of the United States. For more information about refugees, see the âRefugeesâ section.
There are 7 main types of algae (but more do exist) that aquariums can have. Brown algae. Brown Algae. This will probably be the first type of algae any one will encounter in the aquarium and could appear from early on and will normally disappear when the tank stabilises and becomes more mature. Brown algae could be in the form of a fluff like or spot appearance on plant leaves, rocks, glass, substrate or decorations.
Multicellular Plant-Like Protists. Multicellular algae are groups of two or more cells that act as a single organism. If you have seen pond scum growing in water, it is likely that there are multicellular algae growing in there. Similar to unicellular plant-like protists, multicellular algae can be enormous or miniscule.