Water balance

Oyster shells in bag 5 KG

Oyster shells have a particularly stabilizing effect on the KH value, and thus indirectly on the pH value. The KH value indicates the carbonate hardness of the water. Many people think if they have harder tap water, they won't have problems with the KH and pH levels. The KH is somewhat like the buffer of the acidity (pH) of the water. Fish, plants and the biological filter 'consume' water hardness (KH). If, for example, little water is changed in the winter, the KH can quickly become too low. The KH value also drops quickly during periods with a lot of rain. This has major consequences for the fish, because the pH value can suddenly drop sharply (the so-called pH crash). Often the KH value in the pond is not measured regularly enough. Only in the event of problems, so when it is too late, is action taken by adding remedies, such as KH+ powder. However, KH+ powder has a number of drawbacks: • a lot of powder disappears very quickly via the bottom drain/filter system • short-term boost effect, large fluctuations in water values • always have to keep measuring and adding powder Oyster shells guarantee complete KH and pH stabilization for a longer period of time. The oyster shells will only slowly dissolve when the KH drops and in this way buffer the pH. Completely independent of the amount of rain, water changes or the season: the oyster shells automatically keep your KH level and the pH stable. Only when the oyster shells have almost dissolved should you refill with new oyster shells. A rough indication is 1 bag of oyster shells per 10m3 water volume per year; the exact need is of course highly dependent on influences as described above. These oyster shells are supplied in a net so that they are also easy to rinse. The oyster shells are washed with chlorine and then dried: a guarantee that no harmful bacteria, fungi or germs are present. The shells are also very suitable for use as biological filter material in a trickle or multi-chamber system.

Manufacturer: Air Aqua

€21.95*

10 %

Colombo Test Lab

The Colombo Testlab Professional is a handy plastic case with droplet tests for the 6 most important water values: pH, GH, KH, NO2, NO3 and NH3. The supplied test tubes, the instruction card and a note table make water testing very easy. You can conveniently store all the tests together in the case. The Colombo drip tests give you the most accurate water values. You can also use Colombo test strips for a quick indication.

Manufacturer: Colombo

€44.99* €49.99*

31 %

Indicators for Velda AquaTesterPro (25 pieces)

Indicators for fresh water for the Velda AquaTesterPro (25 pieces)

Manufacturer: Velda

€19.75* €28.50*

10 %

Colombo GH+ - 15,000 ml

Colombo GH+ Restores the total hardness of your pond water. Colombo GH+ uses minerals and trace elements for this. GH+ increases the total hardness of your pond water. This is a measure of the total amount of dissolved minerals in your pond. Your plants and fish need these minerals to grow and maintain their health. The GH value should be between 8 and 12ºDH. Once the optimal GH value has been reached, stabilize the water values with Balantex. Dosage/Use 1 scoop (=15ml) per 200 liters of pond water increases the GH by 2ºDH. First dilute the required amount in a bucket or watering can with lukewarm water. Never pour directly on the plants. Test the water quality once a month and correct where necessary. Only used for ornamental ponds. Keep in the container and out of the reach of children between 4 and 32ºC.

Manufacturer: Colombo

€62.99* €69.99*

Oyster shells in bucket 10 liters

Oyster shells have a particularly stabilizing effect on the KH value, and thus indirectly on the pH value. The KH value indicates the carbonate hardness of the water. Many people think if they have harder tap water, they won't have problems with the KH and pH levels. The KH is somewhat like the buffer of the acidity (pH) of the water. Fish, plants and the biological filter 'consume' water hardness (KH). If, for example, little water is changed in the winter, the KH can quickly become too low. The KH value also drops quickly during periods with a lot of rain. This has major consequences for the fish, because the pH value can suddenly drop sharply (the so-called pH crash). Often the KH value in the pond is not measured regularly enough. Only in the event of problems, so when it is too late, is action taken by adding remedies, such as KH+ powder. However, KH+ powder has a number of drawbacks: • a lot of powder disappears very quickly via the bottom drain/filter system • short-term boost effect, large fluctuations in water values • always have to keep measuring and adding powder Oyster shells guarantee complete KH and pH stabilization for a longer period of time. The oyster shells will only slowly dissolve when the KH drops and in this way buffer the pH. Completely independent of the amount of rain, water changes or the season: the oyster shells automatically keep your KH level and the pH stable. Only when the oyster shells have almost dissolved should you refill with new oyster shells. A rough indication is 1 bag of oyster shells per 10m3 water volume per year ; the exact need is of course highly dependent on influences as described above. The oyster shells are washed with chlorine and then dried: a guarantee that no harmful bacteria, fungi or germs are present. The shells are also very suitable for use as biological filter material in a trickle or multi-chamber system.

Manufacturer: Air Aqua

€24.95*

10 %

Colombo KH+ - 5,000 ml

Colombo KH+ restores the carbonate hardness (KH). In addition, Colombo KH+ stabilizes the pH value. A correct carbonate hardness (KH) is a prerequisite for a stable acidity (pH). The KH value should be between 6 and 8ºDH. If the KH is too low, the pH value can show rapid fluctuations, which is very harmful to pond life. As soon as the optimal KH value has been reached, stabilize the water values in your pond with Colombo Balantex. Dosage/Use 1 scoop (=15ml) per 200 liters of pond water increases the KH by 2ºDH. First dilute the required amount in a bucket or watering can with lukewarm water. Never pour directly on the plants. Test the water quality at least once a month and correct where necessary. Only for use in ornamental ponds. Keep in the container and out of the reach of children between 4 and 32ºC.

Manufacturer: Colombo

€35.99* €39.99*

Colombo PH Test

Colombo PH test can be used to accurately determine the pH value of the water in your pond. The pH is an arithmetic indication for the amount of acid in pond water. The water can have a pH value that varies between 0 and 14, whereby the lower the value of the water, the more acidic the pond water. Large fluctuations in the pH value are harmful to the fish. This can have disastrous consequences, especially at the start of a filter. It is wise to test at least 2 x a week for the first time. Then you should check the values of PH, GH, KH NO2, NO3 and NH3 monthly. The pack contains 25 tests. Optimal water values: pH value: 7-8 GH value: 8-12 KH value: 5-12 Ammonia (NH3) < 0.15 mg/l Nitrite (NO2) < 0.15 mg/l Nitrate (NO3) < 0.50 mg/l Oxygen (O2) 60%- 100%

Manufacturer: Colombo

€9.49*

4 %

Colombo NH3 Ammonia Test

The Colombo NH3 test determines the NH3 (Ammonia) value of your pond water simply and accurately for you. In order to obtain and maintain an optimal pond environment, it is necessary to monitor the various water values. In this way you can prevent diseases in your fish and/or plants. It is wise to test at least 2 x a week for the first time. Then you should check the values of PH, GH, KH NO2, NO3 and NH3 monthly. The pack contains 40 tests. Optimal water values: pH value: 7-8 GH value: 8-12 KH value: 5-12 Ammonia (NH3) < 0.15 mg/l Nitrite (NO2) < 0.15 mg/l Nitrate (NO3) < 0.50 mg/l Oxygen (O2) 60%- 100%

Manufacturer: Colombo

€13.97* €14.49*

11 %

Pond Pro Premium Ammonia & Nitrite Remover 1 liter

Pond Pro Ammonia & Nitrite Remover is a cocktail of ammonia oxidizing bacteria (aob), enzymes that convert the ammonia produced by the heterotrophic bacteria into nitrite (after which the nitrite oxidizing bacteria (aob) can convert it into harmless nitrate) and enzyme-producing bacterial strains. Use: Use Pond Pro Ammonia & Nitrite Remover before start-up and every spring on day 1 and day 6 (25 ml per 1,000 liters of pond water). For maintenance: 25 ml Pond Pro Ammonia & Nitrite Remover per 1,000 liters of pond water per month. With increased ammonia value: 25 ml per 1000 liters of pond water per day, up to a value <0.5 mg/litre. Shake before use and close bottle tightly after use. Turn off the UV lamp for 12 hours. - Keep out of reach of children - Do not expose to direct sunlight and temperatures higher than 38 degrees - Do not swallow and avoid eye contact - After any contact with the skin, wash it thoroughly with plenty of water and soap

Manufacturer: Pond Pro

€24.95* €27.95*

10 %

Colombo KH+ - 15,000 ml

Manufacturer: Colombo

€71.99* €79.99*

10 %

Colombo KH+ - 2.500 ml

Manufacturer: Colombo

€23.39* €25.99*

8 %

AquaTesterPro

De AquaTesterPro meet in slechts een paar seconden de belangrijkste waterwaarden. Kennis van de waterkwaliteit is belangrijk, zeker bij het houden van vissen en planten. Met deze elektronische watermeter kunt u vaak en eenvoudig de waterkwaliteit controleren. De digitale testresultaten zijn zeer nauwkeurig en kunnen via bluetooth worden verzonden naar uw smartphone of tablet. De AquaTesterPro app gebruikt de waardes voor een complete diagnose en historie van het water. Vervolgens krijgt u slimme verbetertips van Velda om de waterkwaliteit op peil te houden en eventuele problemen te voorkomen. De AquaTesterPro met zoet water indicators van Velda meet in slechts een paar seconden de belangrijkste waterwaarden van vijver- en aquariumwater, maar bijvoorbeeld ook van oppervlakte- en grondwater. pH, GH, KH, TA, NO2, NO3, Cl2 en CO2. Afmetingen Product: 124 x 64 x 34 mm Inclusief indicators zoet water Exclusief 3 x AAA batterijen

Manufacturer: Velda

€127.71* €139.50*

10 %

Colombo pH 2500 ml

Colombo PH- is a new product that you can use to reduce the amount of acid in your pond water. The pH value is one of the values you always test to check whether the value is high or low in your pond water. A solution for too low a pH had already been found by adding KH+ to it. Until now, no solution had been found for a pH that was too high! Ph- can be added to avoid disastrous consequences. With its water improvers Colombo has developed products that effectively tackle problems in a pond and make them disappear. Colombo pH- 2500 ml is used when you want to lower the pH value. If your pH is too high, this can be harmful to your fish and it is advisable to lower the pH value of your pond water. By adding these water improvers, you ensure that the biological processes in your pond start and continue.

Manufacturer: Colombo

€19.79* €21.99*

10 %

Colombo KH+ - 1,000 ml

Manufacturer: Colombo

€14.39* €15.99*

10 %

Colombo Quicktest 6 way

Colombo Quicktest is there to be able to measure the 5 most important water values quickly and easily. By means of the test strips you can quickly see when a water value is not in order. But if you want to be sure of all tests, we recommend using the drop tests, they often give a more accurate value than the test strips. With its water testing range, Colombo has developed a complete product line to properly test the water values of the pond water or aquarium water.

Manufacturer: Colombo

€13.49* €14.99*

5 %

Colombo NO3 Nitrate Test

The Colombo NO3 tests the NO3 (nitrate) value of your water in the pond or aquarium. In order to obtain and maintain an optimal pond environment, it is necessary to monitor the various water values. In this way you can prevent diseases in your fish and/or plants. It is wise to test at least 2 x a week for the first time. Then you should check the values of PH, GH, KH NO2, NO3 and NH3 monthly. The pack contains 40 tests. Optimal water values: pH value: 7-8 GH value: 8-12 KH value: 5-12 Ammonia (NH3) < 0.15 mg/l Nitrite (NO2) < 0.15 mg/l Nitrate (NO3) < 0.50 mg/l Oxygen (O2) 60%- 100%

Manufacturer: Colombo

€13.77* €14.49*

7 %

Mineral+ Control 5kg (KH & GH)

Mineral+ Control is een combinatie van noodzakelijke mineralen die samen zorgen voor een goede mineralenbalans in de vijver. Voor de groei van de waterplanten en de ontwikkeling van de micro- organismen is de kwaliteit van de mineralenbalans van groot belang. Het biologische leven alsmede haar bewoners verbuiken deze mineralen. In zacht water stagneren de biologische processen. Voor een stabiel en gezond vijvermilieu is het noodzakelijk deze verbruikte mineralen toe te voegen. Werking van Mineral+ Control Mineral+ heeft een breed scala aan mineralen en daardoor verhoogt het ook de totale hardheid (GH) en de carbonaathardheid (KH). Het is belangrijk deze waarden op peil te houden (GH tussen 8° en 12°; KH tussen 6° en 11°) om verzuring van het milieu te voorkomen. Mineral+ Control is een volledig natuurlijk product zonder toevoegingen. Het is volkomen biologisch en zelfs bij 3-voudige overdosering onschadelijk voor alle vijverbewoners. Het is ook geschikt voor zwemvijvers en onschadelijk voor mensen en dieren. Dosering: 100 gram/m3 voorhoogt de GH met 3° tot 5° en de KH met 2° tot 3°.

Manufacturer: Air Aqua

€53.41* €57.25*

2 %

GH+ Control 10kg

Minerall-in-One is een mix van natuurlijke mineralen. Deze bijzondere mineralenmix zorgt voor een goede balans in uw vijver waardoor algengroei tot een minimum beperkt wordt. Minerall-in-One stabiliseert de pH-, KH- en GH-waarde, zorgt voor helder water en reduceert slib. Het ondersteunt het biologische filter bij de groei van micro-organismen die schadelijke stoffen op biologische wijze afbreken. Dit resulteert in helder en gezond vijverwater. Dosering: 100 g per 3000 liter Bij het eerste gebruik 2x per maand. Vervolggebruik 1x per maand. Minerall-in-One in het water strooien of vooraf oplossen in een emmer en gelijkmatig in de vijver verdelen. Minerall-in-One bevat ijzer, mangaan, magnesium, siliciumoxide, natrium en mineralen. 1 kg is voldoende voor 30 000 l

Manufacturer: Air Aqua

€69.28* €70.75*

KH+ Control 2.5kg

KH Control Een voldoende hoge KH-Waarde (tussen 6° en 11°) is erg belangrijk omdat deze de pH-waarde stabiliseert en als een buffer functioneert tegen een sterke en plotselinge pH-daling (zg. pH-crash). Zo verzekert u dat de biologische processen ongestoord verlopen en uw vissen en het biologische leven geen schade ondervinden door sterke pH-schommelingen. Dosering: 100 gram/m3 verhoogt de KH met 3-4°.

Manufacturer: Air Aqua

€23.56*

10 %

Colombo Balantex - 1,000 ml

Colombo Balantex restores and maintains the correct mineral balance in your pond water. Correct total hardness (GH) and carbonate hardness (KH) are essential for the functioning of your pond. Demineralization takes place in the closed environment of your pond through biological filtration and absorption by plants and animals. By regularly adding Colombo Balantex to the pond water, you keep the water values at the right level and you create the basis for a clear and healthy pond. In addition, Balantex contains 18 different minerals and vitamins to strengthen the health of your fish. Use/Dosage If the GH or KH is too low, you should first use Colombo GH+ and/or KH+ to bring the values to the right level. You then stabilize these values with Colombo Balantex. The starting dose is 1 scoop (= 15ml) per 500 liters of pond water for 5 days. Then as a maintenance dose; 1 scoop per 1,000 liters of water per week. First dilute the required amount in a bucket or watering can with lukewarm water. Never pour directly on the plants. For use in ornamental ponds only. Keep in the container and out of the reach of children between 4 and 32ºC.

Manufacturer: Colombo

€14.39* €15.99*

10 %

Colombo Balantex - 5,000 ml

Manufacturer: Colombo

€43.19* €47.99*

17 %

Microbe-Lift Clean & Clear - 4 Liter

Microbe-Lift Clean & Clear is a total formula for clear and healthy ponds with fish and/or plants. Microbe-Lift Clean & Clear contains, among other things, photosynthetic bacteria. Clean & Clear is the only pond formula with these photosynthetic bacteria. It is grown in the bottle in which it is sold thanks to a unique and unrivaled process! Like solar panels, Microbe-Lift Clean & Clear's photosynthetic bacteria use the sun's energy for natural biological processes that keep your pond clean and clear. It will also reduce filter maintenance. Clean & Clear contains more than 30 different, live, bacterial cultures that can remove the organic pollution in your pond. It is the most potent pond formula that has proven its strength for years!

Manufacturer: Microbe-Lift

€62.93* €75.70*

10 %

Colombo GH+ - 2.500 ml

Manufacturer: Colombo

€19.79* €21.99*

10 %

Colombo GH+ - 1,000 ml

Manufacturer: Colombo

€12.60* €13.99*