Common name: Red Algae Family

Gelidiaceae is a family of red algae primarily found in marine environments. Members of this family are known for their robust, cartilaginous thalli, which can vary in color from dark red to almost black. They are often used in the reefkeeping hobby as a natural method for nutrient export and can provide a habitat for small invertebrates. Gelidiaceae species are also the original source of agar, a gelatinous substance used in food and scientific applications.

1. 
   Common name: kanteen

   Scientific name: Gelidium corneum
2. 
   Common name: Gelidium Seaweed

   Scientific name: Gelidium microdon
3. 
   Common name: Dwarf Red Algae

   Scientific name: Gelidium pusillum
4. Common name: Spiny Gelidium

   Scientific name: Gelidium spinosum