Micranthemum umbrosum is a delicate stem plant from the south-eastern USA with tiny round leaves on thin stems, giving a soft, cloud-like look. The genus is native from the eastern USA to tropical and subtropical America. Tropica rates it medium difficulty and fairly demanding of light, with medium CO2 needs. It reaches 10–15 cm within two months, and stems can reach 25 cm. Growth is slow to start but fast once established, and CO2 helps a lot. It looks best as a large group of many stems in small or large tanks. Pinch out the tips often to keep it bushy. Water figures are our estimate, not from the sources. Sources: Tropica (tropica.com/en/plants); Wikipedia (en.wikipedia.org/wiki/Micranthemum); Wikipedia, List of freshwater aquarium plant species. Checked October 2026.
Breeding
Pinched-out shoots can be planted straight into the substrate as cuttings; frequent pinching gives both a denser group and plenty of new plants.
Compatibility and tank mates
Fine-leaved stems trap debris and are grazed by goldfish, silver dollars and large cichlids. Shrimp, fry and small tetras and rasboras suit it well; avoid strong flow and heavy diggers.
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.