This group covers useful aquarium plants that do not fit neatly into the core husbandry buckets. The focus stays on practical care, placement, and the situations where each plant actually works well. In this library, they most often show up attached to wood or stone in the background. The current set leans toward low light conditions. Most entries are beginner plants.
Use the filters below to narrow the list by placement, light requirement, or difficulty when you want plants that do a similar job in the aquascape.
Dracaena sanderiana
A popular houseplant and marginal terrarium plant frequently sold for aquariums. While its roots can be permanently submerged, its foliage must remain above the water line to prevent rotting. It is highly effective at absorbing nitrates when grown in open-top tanks, hang-on-back filters, or ripariums where its stems extend out of the water.
Aegagropila linnaei
A highly unique, slow-growing species of filamentous green algae that naturally forms into velvety green spheres. Native to cold water lakes, it thrives in cooler aquariums and is a favorite among shrimp keepers due to the immense grazing surface it provides.
Epipremnum aureum
A highly popular trailing vine widely used in the aquarium hobby as a riparium or emergent plant. While its leaves will rot if kept submerged permanently, the plant thrives when its roots are suspended in the aquarium water column (often placed in hang-on-back filters or clipped to the rim). It acts as an incredibly powerful natural filter by rapidly consuming excess nitrates, while its dense aquatic root system provides excellent cover for fry and shrimp.
Rhizophora mangle
Red Mangroves are primarily grown in open-top aquariums, sumps, or refugiums where their intricate root systems grow submerged while the foliage remains emersed above the water line. They require high light on their leaves and strict maintenance, such as regular misting with freshwater to wash excreted salt from their foliage, but reward keepers with excellent natural filtration and a highly authentic biotope environment.
Ipomoea batatas
While not a true aquatic plant, the sweet potato is widely used in the hobby for aquaponics and extreme nitrate reduction. The tuber or a cutting is suspended at the water's surface, allowing an extensive, dense root system to grow down into the water column while the leafy vines grow entirely emersed above the tank. The massive root network provides excellent refuge for fry and shrimp while rapidly absorbing excess nutrients.
