Plant Name: Crystalwort Moss (Riccia fluitans) Care Level: Easy Recommended Substrate: None required; can be floated or attached to rocks, driftwood, or mesh Recommended Lighting: Moderate to high lighting Recommended Temperature: 68-82°F (20-28°C) Max Plant Size: Forms dense mats up to 1-2 inches (2.5-5 cm) thick Foreground, Midground, or Background?: Foreground or Floating Need CO2?: Not required, but strongly beneficial for dense carpeting and faster growth Fun Fact: Crystalwort Moss isn't actually a moss—it's a floating liverwort. It became famous in the aquascaping world after being featured in many of Takashi Amano's award-winning Nature Aquariums, where it was tied to stones to create lush, vibrant carpets. Appearance: Crystalwort consists of tiny, bright green branching fronds that form dense cushions or floating mats. Under strong lighting and CO2, it produces streams of tiny oxygen bubbles, known as pearling, creating a dazzling effect. Aquarium Use: It can be left floating to provide cover for fry and shrimp or attached to rocks, driftwood, or stainless-steel mesh to create unique foreground carpets and accent pieces. Propagation: Easily propagated by separating small portions of the plant. New fragments quickly grow into dense mats when provided with adequate light and nutrients. Note: Regular trimming is recommended to prevent the lower layers from being shaded and detaching from the hardscape. When properly maintained, Crystalwort creates one of the brightest and most eye-catching green carpets in a planted aquarium.
