The long tentacle anemone is a great choice if you are thinking of starting an anemone tank. This type of anemone is easy, even for those who are beginners. The keys to keeping an anemone successfully, is first to know and understand what an anemone is, and what it takes to keep one.One type of anemone is known as the Pacific Long Tentacle Anemone; this anemone is a member of the actiniidae family and is commonly found in the Indo Pacific, normally in the shallow area of reefs.