Common name: Trididemnum Tunicate

Trididemnum is a genus of colonial tunicates often found encrusting on rocks and coral reefs. These tunicates are known for their vibrant colors and can add a unique aesthetic to a reef aquarium. They are filter feeders, drawing in water to extract plankton and other nutrients. Trididemnum species are generally hardy and can be beneficial for water quality, but they may overgrow other sessile organisms if not managed.

1. Common name: Blue Velvet Sea Squirt

   Scientific name: Trididemnum pigmentatum
2. 
   Common name: Colonial Tunicate

   Scientific name: Trididemnum solidum