Give excess to other indoor pets if appropriate, compost, or immerse duckweed in water and freeze in a dedicated ice-cube tray. Answer Save. Duckweed, though, can be a huge problem in a pond. Duckweed can be useful for reducing light and excess nutrients, and some fish love to eat it. Betta Fish: Plants are growing in nicely! And it gets tangled in other plants where it looks bad. Or I can send a smaller amount in a priority bubble wrap bag for $4. Ok, this stuff is overflowing! Favourite answer. Thanks for looking! I bought the four pack of aquarium bulbs from Petco and planted them about a month ago. Is duckweed good or bad for a small pond? Do duckweed is a very undemanding floating plant when it comes to water parameters but it does require high lighting for its proper and fast growth. Anonymous. If kept in control, this plant can act as a very good water purifier for your aquarium. Aquarium duckweed plants info guide. How much light does duckweed require? Is getting duckweed a good idea? Many pond owners have learned that duckweed can be an object lesson in the power of exponential growth. If you want a botanical control for nitrates, duckweed is as good as it gets. I don't like it myself because it is messy--it sticks to nets, tools, and hands. Water type, Temperature, Hardness, and pH: Water temperature: Duckweeds grow optimally in water temperatures between 15 and 32 °C (60 – 90 F). December 1, 2019. 2. Update: No more duckweed. Duckweed is one of the most common pondweed problems.They grow quickly and takes a little time to cover up the whole pond. This plant has the ability to reproduce rapidly, it can double in just 16 hours - 2 days, depending on its growing environment. Above or below that range, Duckweed just sort of sits there and does not grow. FishGirl115. Fish Lore's aquarium forum - aquarium hobbyists helping hobbyists since 2005! Jul 23, 2020. Duckweed does not like that stuff very much. This means having a fish scoop handy to harvest floating biomass in excess of half the surface area of the water. For some duckweed is a menace, for others it's a Godsend. It must be controlled in a small pond. Duckweed Growth and Benefits. Duckweed can be grown anywhere, including a 1-gallon tank (~4 L). 11 Answers. Member. Seeds that fall into gravel, get sucked into the filter, and hide in various nooks and crannies. Prev Post. Once introduced into your aquarium, monitor duckweed growth daily. Re: Duckweed, good or bad Post by bowsaw » July 9th, 2015, 3:58 pm sounds like Azolla, was a nightmare at a nature reserve i worked at, no idea where it came in from but it had the potential to do a lot of damage Duckweeds can be aggressive invaders of ponds. In good conditions, a duckweed plant can bud and divide once per day, meaning a daily doubling of the plant population and complete coverage of a large pond in weeks. 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