The groups and species presented below are all recorded as brackish-useful in the literature (pet-fish and scientific). The "best" list following these categories.
"Anacharis", actually members of the genera Egeria, Elodea are either the most common species of aquarium plant or close to it.
Anubias spp. A large assemblage of African species and cultivars that are very resistant to both salt intrusion and fish predation.
Bacopa spp., especially B. monniera is found in brackish waters.
Cabomba species. Beautiful, but easily fall apart when moved, and readily eaten. Take care to cut away rubber bands, remove lead weights, and gently plant individual stems if bought in typical "bunches".
Hornwort, Ceratophyllum demersum et al. spp. (coontail to pond people). Cool and tropical water species occur. Generally unpalatable to brackish water fishes.
Water Sprite, Ceratopteris spp. Amongst my favorite aquarium plants period. Beautiful, undemanding, adaptable. Here Ceratopteris cornuta in a floating phase.
Cryptocoryne spp., particularly C. ciliata is well-adapted to brackish water.
Echinodorus spp. The Pygmy Chain Sword, E. tenellus is well-regarded as a part-marine species.
Hairgrass, Eleocharis, particularly the more popular E. acicularis. Lives well in cool water, unheated aquariums. Of the 150 or so species, there are ones found in the tropics to the Arctic.
Hygrophila polysperma, Hygrophilia sticta, many others. "Hygros". Distasteful to many brackish fishes. Do check on the individual species requirements. Most prefer pH's no greater than 7.5, some get very large, others more suitable as closely cropped foreground plants. Some occur in red colors. Emergent species. At right, H. polysperma at a wholesale growing facility.
Microsorium pteropus, Java Fern. One of the best brackish water plant species. In fact, about the only regularly sold aquarium plant that is "naturally" brackish. Slow, but steady grower, attached to wood.
Myriophyllum spp., Foxtails, Parrot Feather.
Temple Plant, Nomaphila spp. A close relative to Hygrophila.
Banana Plant, Nymphoides sp. Close relatives of water lilies.
Sagittaria spp. Tough, waxy leaves help this genus of attractive tall and short plant species to resist salt leaching and consumption by brackish fishes.
Vallisneria spp., particularly the "Giant" Val.s, like V. americana, hold up well to browsing and salt intrusion.
Vesicularia dubyana, Java Moss. Can tolerate low to high light intensity, soft to very hard waters.
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