Common name: Kelp

The Laminariaceae family, commonly known as kelp, consists of large brown algae seaweeds that inhabit the cooler coastal waters of the oceans. These algae are important in marine ecosystems for providing habitat and food for a variety of sea life. In reefkeeping, kelp is not typically kept due to its size and preference for cooler water, but its smaller relatives may be used to add diversity and serve as a natural food source for certain fish and invertebrates.

1. 
   Common name: Oarweed

   Scientific name: Laminaria digitata
2. 
   Common name: giant kelp

   Scientific name: Macrocystis pyrifera