Common name: Calcarea sponges

Leucosolenida is an order of calcareous sponges found in marine environments. These sponges are characterized by their calcium carbonate spicules, which provide support and deter predators. They are filter feeders, playing a crucial role in nutrient cycling within reef ecosystems. In the aquarium, they can be fascinating additions, often hosting a variety of microorganisms and contributing to the tank's biological diversity. They require stable water conditions and moderate lighting, and should be placed in areas with good water flow to facilitate feeding.

1. 
   Common name: Urn Sponge

   Scientific name: Leucilla nuttingi
2. 
   Common name: orange pipe sponge

   Scientific name: Leucosolenia botryoides
3. Common name: Leucosolenia complicata

   Scientific name: Leucosolenia complicata
4. Common name: Leucosolenia eleanor

   Scientific name: Leucosolenia eleanor
5. 
   Common name: Vase Sponge

   Scientific name: Sycon ciliatum