Crystalwort (Riccia fluitans) - 3"x3" Mat - Live Aquarium Plant by Aquatic Arts All Aquatic Arts (formerly InvertObsession) brand plants and animals come with a 100% live arrival guarantee, plus free email support directly from the owners! Crystalwort is a floating plant that can also be made into made and tied to decorations. It ships as a loose bunch that is not tied to a mat. Does not need special or high intensity lighting - can be kept in any freshwater aquarium. Great for fish and dwarf shrimp fry! Provides biofilm, hiding places, and security for the young when you place it in a breeding tank. Bright and healthy, and kept in water in a dedicated tank rather than plastic packaging, which means your plant will arrive much healthier.