Bolbitis Gedeloti (Bolbitis heudelotii) or, as it is called, Congolese fern – aquarium plant, owned by The Millipede or Polypodiaceae family (Polypodiaceae), or real ferns.
Homeland Bolbitis Gedeloti are the West African tropics from Angola to Guinea. Distributed in the slowly flowing rivers and along the banks of reservoirs.
Have Bolbitis Gedeloti creeping brownish rhizome from which lateral roots depart. Rhizome can grow to solid objects.
The location of the leaves alternately. In form, dark green leaves are complex, pinnate. In length grow to 30-50 cm.
Throughout the year it’s aquarium plant grows slowly, but under favorable conditions grows evenly.
AT content Bolbitis Gedeloti whimsical and demanding. But at the same time it takes root well in moderately warm and tropical aquarium.
Temperature at which fern will feel comfortable, should not exceed 26 ° C. Above this temperature, the plant is quickly exhausted and dies.
If the temperature drops to 20 ° C, the plant will slow down. As a means lighting It is possible to use filament lamps or fluorescent type LB.
Daylight hours Bolbitis Gedeloti should be around 12 o’clock. It is well tolerated as a blackout, and feels good with diffused natural lighting.
However, the fern must be protected from direct sunlight. Bolbitis Gedeloti should be contained in water with weak acidity (pH 6-7), as the leaves of the plant in alkaline water tend to decay rapidly. The water hardness in the aquarium is about 6 ° – the maximum allowable.
Best of all, the plant will grow with a stiffness of 4 °. Congolese fern needs regular mineral dressing, especially with poor organic matter at the bottom. The fertilizer must contain trace elements.
Such complex mineral supplements are applied every week and are usually dosed in this way – 1-2 grams per 100 liters of water. But feeding a plant, do not forget that it does not like water saturated with sodium.
Therefore, the addition of baking soda or salt should be minimized (for 1 liter of water not more than 1 g). Growing Bolbitis Gedeloti is possible without soil: the rhizoid roots envelop the laid stone like a net.
it aquarium plant dense enough to sink into the water and not float. Optional but favorable condition plant content is the presence of bottom silt in aquarium.
But for good development and growth of the plant, it is necessary to ensure that the fern does not overgrow with blue-green and green algae (this, incidentally, is the need to protect the plant from direct sunlight).
Breeding congolese fern it does not pose any difficulties: you just need to divide the rhizome into several parts so that each part has a growing point and two or three strong leaves and press the new “tenant” to the bottom with a pebble, avoiding burial in the ground. Under aquarium conditions, spore multiplication was not observed.