Wolfia rootless (Wolffia arrhiza) – subtropical, floating aquarium plant, the smallest of the flowering in the world, belongs to the family Lentic (Lemnaceae).
Homeland Wolffia rootless are reservoirs of Asia and Africa, and this crumb is spread all over the world.
Looks like rootless wolfia as small (diameter no more than 1 mm) green formations in the shape of an ellipse. Aquarists are often used not only as a natural shader aquarium, but also as an additive in the diet of some fish.
Content wolf does not present any difficulties. During the year it grows evenly. This unpretentious plant feels comfortable in both moderately warm and tropical aquarium.
It can be transferred without a “loss” in the winter period a prolonged drop in water temperature (up to 14 ° С). For content of this aquarium plants suitable water with any hardness and with different reactions.
The plant will feel more comfortable in soft water with a weakly acid reaction. Needs constant water change. To one of the conditions content plants should be attributed to the fact that the surface of the water must be in motion.
Otherwise wolfia will die in stagnant water. As artificial aquarium lighting You can use a combination of incandescent and fluorescent type LB (fluorescent lamp power should not exceed 2, 5 W per sq. dm of water surface area).
Wolfia and with natural light grows well, but it must be protected from direct sunlight. Light day for this plant should be at least 12 hours.
Breeds rootless wolfia by division. But in the case of breeding This plant as an additional feeding for fish, should be grown in a separate place.