In aquaristics, the name Leptodictyum riparium (or Amblystegium riparium) is commonly used for the upright-growing "stringy moss". However, populations of L. riparium native to Germany have a very different appearance even when kept under the same conditions. They form - if they are not kept under very low light - more or less horizontal shoots with a dense, flat foliage. The growth habit of this moss corresponds to the descriptions of L. riparium in taxonomic literature (e.g. Frahm & Frey 1992) far better than that of the upright-growing "stringy moss". We are of the opinion that the popular "stringy moss" is Drepanocladus aduncus, not L. riparium.
Streamside Leptodictyum moss, or Leptodictyum riparium, is distributed in almost all the world, and besides willow moss (Fontinalis antipyretica) it is probably the most common aquatic mmoss in Central Europe. It grows on edges and in shallow zones of stagnant or slow-flowing waterbodies with nutrient-rich water, and it is highly tolerant to pollution. L. riparium is frequently found in concrete troughs for watering purposes, especially in graveyards. Its emersed form grows creeping on hard substrates like rocks, tree roots and river embankments. There it frequently forms sporangia, whereas the submersed form of this moss grows floating shoots that are hardly ramified at all or moderately ramified. Leptodictyum riparium is very variable, and its appearance depends a lot on the conditions it grows in.
|form of plant||Creeper|
|height of plant||Up To 10 Cm|
|soil fertility||no information|
|placement in the aquarium||Mid-Ground, Foreground|
|light needs||Grows In Any Light|
|temperature of water||Near 20°C|
|kind of plant||Mosses|
|minimum aquarium size||Not Less Than 20 Liters|
|type of plant||Floating In The Water Column|
|Latin name||Leptodictyum riparium|
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