Down with the Green and the Odours – Tips on Preserving Water Quality


Algae growth is a problem that especially persists with newer ponds. This is because the new ponds do not have a properly balanced ecosystem as of yet, and this unbalance between flora and fauna tends to promote the growth of algae. Besides this, the factor of improperly built ponds also exists – a pond should follow certain regulations which tend to inhibit the growth of these plants. Below are in-depth explanations of these pointers; they will serve as great tips on preserving the quality of the water of your pond:

• Proper construction – a basic which often tends to get overlooked is the construction of the pond. To control the growth of algae, the pond should be built keeping in mind three basic points: its depth, the materials from which it is built and whether runoff from the garden flows into the pond or not. With regards to the depth, the pond should gently slope and possess a deeper end (at least two to three feet), which should take up about 40% of the entire size of the pond. Materials besides the pond liners such as granite, concrete, limestone and marble tend to create a higher pH level in the water – this also promotes algae growth. Lastly, runoff from the garden can contain many nutrients from fertilizers and the like, therefore, a pond should be constructed in a way that runoff from a garden cannot enter the pond. Get your pond installed with liners to prevent algae over here.

• Proper equipment – another extremely important fundamental of algae control in ponds is the installation of proper equipment. A pond should have a powerful pump installed; this pump must be capable of moving at least half of the volume of the water during the day, as stagnant waters are a primary reason for the growth of algae. Besides this, the installation of a biological filter is also an essential – this will improve the quality of the water. The pump must send the water it moves through this filter, and the filter has to be large enough for the pond, and work at all times to ensure the water quality is maintained properly.

• Plant and animal balance – the ecosystem within the pond should also have a proper balance. When the ecosystem is unbalanced, the growth of algae is promoted. In the first instance, plants should be adequately sufficient: there should be floating plants, such as lilies, to obstruct excess penetration of sunlight (which promotes photosynthesis) and underwater plants to take in extra nutrients, so that they will not be available for algae. On the other hand, there should not be too many animals – fish and fish food are sources of valuable nutrients for algae. Therefore, try to limit the amount of fish, and the amount of feed you put into the pond every day.