When and how do you do it?

Many pond plants start to sprout as early as the beginning of March and if the winter was mild, the first flowers will soon appear. A good time to divide the larger clump plants, repot heavy eaters and, if necessary, carry out a moderate basic fertilization. Also the Seaweed have to go so that they cannot spread further in warmer temperatures.

Eliminate frost damage and pond sludge

Particularly on the bank zones, severe permafrost can cause damage to the edge reinforcement, and the pond liner is sometimes damaged in some places. After all mechanical damage has been removed, the pond floor must be carefully cleaned and the sludge that has now accumulated must be completely removed. With high pressure cleaner(€ 99.99 at Amazon *) and mud vacuum cleaners are quicker, otherwise a landing net will do the same. The resulting silt is excellent worm feed, which on the compost or can be mixed right under the bed.

Fill up the pond water, but do not change it

Apart from the fact that a complete change of the pond water only unnecessary stress for the fish living in the water caused, only fresh water would have an unfavorable effect on the biological balance in the pool. “Stale” water, however, supports the breakdown of nutrients by aquatic plants and microorganisms and significantly reduces the formation of thread algae. A complete replacement of the water can only be considered if the following water values ​​are significantly higher or lower:

• pH value: 7 to 8
• Nitrite content: 0.15 mg / l
• Nitrate content: 0.5 mg / l
• Carbon hardness: 5 to 12
• Total hardness: 8 to 12 ° dH

Maintenance of the technical system of the pond

After cleaning the garden pond, the pumps, water features, filter and pond clarifier from the Hibernation fetched and checked for functionality. If the thorough cleaning and any necessary replacement of the filter cartridges has not already been done before wintering, now is the time.