It is hard to miss these dark red coloured sea anemones of the mid to low tide zone. They live in rock pools and also on subtidal reef up to 5 metres depth. Also known as sea-squirts, these animals are able to survive exposure to air during low tides by hiding in shaded rock crevices or in rock pools. During a low tide they cling tightly to rocks and enclose their tentacles within their large mouth to look like a red blob. When the tide returns they unfurl their dark red tentacles and begin to filter food from the water. One siphon draws water in while water is pumped out a second siphon. When covered by water they can slowly crawl over the rocks. Once born baby anemonies emerge from the tentacle lined mouth and float as plankton before sticking to rock surfaces to start their own independent lives.