Subwassertang is an extremely popular aquatic plant commonly used in planted aquariums that resembles seaweed. Although this peculiar plant looks like a moss or liverwort, it is neither and is most closely related to Lomariopsis Lineata. Subwassertang is very hardy and will tolerate a wide range of aquarium parameters and water conditions. This bulletproof nature makes it a wonderful choice for beginner aquarists who are interested in keeping live plants for the first time. Subwassertang can be commonly spotted in shrimp tanks and breeding project tanks since it provides an ideal environment for young fry. Subwassertang is commonly confused for Monosolenium Tenerum aka Mini Pellia, due to a similar appearance and structure but can be distinguished by its slight transparency and darker tone.

This aquatic plant exhibits similar growth to that of mosses and will self-attach to aquarium decor, stones and driftwood that provide a suitable foundation. Alternatively, it can be left free-floating and will eventually settle in random areas of the aquarium. Subwassertang is a slow-grower, but has the potential to grow out of control if placed in an aquarium with higher lighting, CO2 injection and nutrient dosing.