River buttercup is a small Australian buttercup with deeply cut, umbrella-shaped leaves. Unlike many Ranunculus, which turn coarse and leggy underwater, it stays neat and compact in aquaria. Tropica sells it from tissue culture. Use it in the foreground: it reaches about 5 cm or a little more in two months, and its runners slowly fill the ground to make a dense cover. Trim long leaves to keep it tidy. Tropica rates it medium difficulty, with medium light (about 0.5 W/L) and medium CO2 (about 6–14 mg/L). Strong light keeps it compact. Tropica does not give water figures. Water figures are our estimate, not from the sources; it comes from a temperate to subtropical climate and copes with slightly cool water. Sources: Tropica (tropica.com/en/plants); Wikipedia, List of freshwater aquarium plant species. Checked October 2026.
Breeding
It sends out runners that form new plants; cut and replant them once rooted.
Compatibility and tank mates
Small and soft; digging fish may uproot it and plant-eaters may nibble it. Suits shrimp and small community fish in tropical or cool tanks.
Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.
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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.
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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).
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