Velda B.V. products

White substrate from Velda has been the standard for a biological substrate of your pond for many years. Owing to its very light and porous structure this substrate provides maximum adherence of micro-organisms.

With the help of these floating linkable planting baskets you can add an impressive island to your pond. The baskets, which are equipped with a styrofoam floating ring, can be linked together mutually and can be applied in any random place on the water surface. This will produce a fascinating effect, even in those places where the pond is too deep to plant marsh plants on the bottom. Colour: Zwart.

The floating plant support made of piocelan can be applied in any random place on the water surface. This will produce a fascinating effect, even in those places where the pond is too deep to plant marsh plants on the bottom.

Using this overgrowing mat, you will make a splendid connection between the pond edge and the water of the pond. The mat contains many indentations in which marsh plants can be put. In this way you will realise a naturally grown overgrown connection between the water surface and the pond edge.

Bacterial contains nitrifying bacteria cultures in lyophilized form. These water-purification bacteria immediately start cleaning your pond biologically! They help to create a biological balance, clear the water and promote healthy plant growth.

The bacteria in Bacterial Filterclean clean the pond filter, without effort and without getting your hands dirty! Pour these liquid bacteria into the pond filter over areas where dirt accumulates. While the filter continues to operate, the bacteria begin to biodegrade dirt. Dosage: apply 50 ml (= 2 measuring cups) in the filter (water temp. > 10°C). Repeat the dose every 3 weeks.

Buying this packing, containing Bacterial Filterstart, you have come into possession of a culture of micro-organisms in freeze-dried form. When Bacterial is added to a pond filter that is in operation, billions of nitrifying bacteria will come into being within 24 hours. Although their size is very minuscule indeed, these bacteria are indispensable for almost any form of life on earth. This also applies to garden ponds, for nitrifying bacteria are playing an important role in decomposing (i.e. demineralizing) organic constituents. Besides enzymes and moulds, these bacteria take care that organic waste material will be converted into nutrients for water plants. A biologic filter plays an important role here.

These liquid water-purification bacteria immediately start cleaning your pond biologically! They help to create a biological balance, clear the water and promote healthy plant growth. Dosage: 25 ml (= 1 measuring cup) per 2500 litres of pond water. Repeat the treatment 4 times a year.

Bio-Activator solves the problem of pond sludge by combining two long-acting components in the pond. By activating the granulate with cleaning bacteria, bottom dirt disappears quickly and nitrate is decomposed into gas bubbles that leave the pond in a natural way. Pour the activator over the granulate and let it soak for 5 minutes. Wear gloves and distribute this mixture evenly over the bottom. Suitable for all ponds, incl. swimming ponds, at water temperaturs above 10ºC.

Fallen leaves, died off water plants and excrements of fish can increasingly pollute the pond bottom. Lack of oxygen will acidify the pond soil, whereas decomposition of organic sludge is no longer possible. The water plants will no longer grow and algae will gain the upper hand. Bio-Oxydator removes sludge from the pond bottom and will prevent new sludge from forming.