Sand spikerush (Eleocharis montevidensis) care guide
Group
Plants
Other names
Giant hairgrass, American Eleocharis
Family
Cyperaceae (sedge family)
Origin
The Americas (Tropica gives North America)
Water
freshwater
Maximum size
40 cm
Temperature
15–28°C
pH
6–7.5
Hardness
2–15 dGH
Care level
beginner
Lighting
Low to medium light; CO2 not needed
Care
A tall spikerush with thin, straw-like, fresh grass-green stems only a few millimetres thick. Tropica gives its origin as North America. It grows about 20–40 cm tall in an open, airy clump, so it is mainly a background plant; Tropica also suggests thin, see-through clumps in the front or centre of a layout to add depth. Tropica rates it as easy and low maintenance, growing at a medium rate in low light without added CO2. Trim back runners that stray too far. Water figures are our estimate, not from the sources. Sources: Tropica (tropica.com/en/plants); Wikipedia, List of freshwater aquarium plant species. Checked October 2026.
Breeding
Spreads by runners. Cut off runners now and then and replant the new plants elsewhere.
Compatibility and tank mates
Not eaten by fish or snails; digging fish may disturb young plants. Suits tropical and unheated tanks.
Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.
About Aquatic-Auctions
Aquatic-Auctions (aquatic-auctions.com) is a UK online marketplace for aquarium and pond livestock and equipment: tropical and marine fish, corals, shrimp, snails and other invertebrates, aquatic plants, tanks, filtration, lighting and food.
Items are sold by auction, buy it now or classified advert, by hobbyist and business sellers in the UK.
Buyers pay sellers directly; Aquatic-Auctions does not hold the money. Hobbyist sellers must offer PayPal and may also take cash on collection. Business sellers take PayPal (required) or cash on collection, and bank transfer only once they have a seller rating of 50 out of 100, a company and pet-selling licence checked by Aquatic-Auctions, a bank account in the company's name, and bank details approved by Aquatic-Auctions.
Buyers are told to pay by PayPal Goods & Services, never PayPal Friends and Family, gift cards or crypto.
Live fish and other vertebrates must be sent by specialist live-animal couriers (for example APC Overnight or DX Express), never by Royal Mail. Some invertebrates and plants may go by Royal Mail Special Delivery or 1st Class within its rules.
Banned and invasive species (for example those on the GB invasive species lists) cannot be listed, and sellers must meet the site’s animal welfare standards.
Members must be 16 or over to buy (16 and 17-year-olds with a parent or guardian’s agreement); sellers must be 18 or over.
Business sellers show their address, company details and pet-selling licence to buyers. Seller ratings run from 0 to 100: +1 for each positive feedback, −1 for each negative.
The site includes a free community species wiki with care guides (water parameters, tank size, diet, temperament, breeding).
Aquatic-Auctions is run by Etavonni Tech Limited trading as Aquatic-Auctions (company number 10204188), Aldershot, Hampshire, UK. Contact: info@aquatic-auctions.com.