Name: Ludwigia repens
Origin: North America
I have a 45 cm aquarium with about 6 bunches of these seperated into about 30 plants. I have one 60 cm flourecent bulb and although it is low light the plant still grows rather tenaciously (about 2 cm every week). My new leaves are green, but as it ages they turn a very dark maroon. There is also a thin leafed variety that seems to grow slower, but is more pinkish like the picture. Don't plant these too close because some of them will shade the smaller ones and they seem to create a lot of mulm.
I have this plant in my 150 L community tank and so far I have 6 neon tetras, 5 cardinal tetras, and 2 female siamese fighting fish. I haven't much else now, but the plant itself in the tank makes an excellent part of my setup, for the fact that it really brings out the color of my fish and adds an elegant view of my tank.
The red shades that show on Ludwigia repens are beautiful in contrast to the usual greens. I received two of these plants roughly 4 months ago, and since then I have had to trim them numerous times. I now have about 10-12 separate plants that I keep trimmed to about 15 cm. Propagation is just like any other stemmed plant, simply cut the tops and replant them. I've also found that if you cut them into 2 sections, new shoots will sprout from the 'seams' in the stem. I've just recently started using this method for faster propagation. I cut apart a healthy stem (usually into about 3-4 seperate pieces), plant them in the gravel, and within a week or two, roots will take hold and new shoots will form, yielding several new plants. I currently have this plant in a 30 cm deep tank with roughly 0.8 W/L of fluorescent lighting, dosing monthy with Seachem fertilizer tablets and CO2 injection.
If allowed, this plant will emerge off of the water surface and continue growing like a terrestrial plant. When allowed to emerge, it removes nutrients from the water so fast that algae won't stand a chance! I have cured my algae infested tank by encouraging aerial growth of 5-6 Ludwidgia plants.
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