JBL AlgoPond Direct
Active oxygen to combat thread algae in the garden pond

There are successor products for this item:
AlgoPond Forte
  • For a pond without thread algae problems: active oxygen to combat blanketweed in the garden pond.
  • Easy to use: determine the required quantity, spread it on the algae surface, remove the algae with net
  • Reliable and fast: destruction of the algae cells within a few hours
  • Not harmful to fish when used correctly
  • Contents: active oxygen AlgoPond Direct. Dosage: 30 - 50 g per about 1000 l pond water
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basic price 65,16 EUR / kg
Recommended retail price incl. VAT
Dealer close to you
You can find this article at your specialist shop and online
basic price 37,45 EUR / kg
Recommended retail price incl. VAT
Available from your specialist dealer.
Dealer close to you
You can find this article at your specialist shop and online
Product information

To combat thread algae in the garden pond AlgoPond Direct combats thread algae highly effectively in the garden pond by means of released oxygen. Its effect is immediate and the algae can be seen to perish within a few hours. After 24 – 48 hours the algae have usually completely died off. Dying and dead algae can easily be removed using the JBL Pond Fish Net.

JBL’s zero-risk concept
Algae can pollute the pond water and thus cause damage to the fish and the plants in the pond. In collaboration with scientists JBL has developed a concept for a permanent removal of algae.

“1-2-3 algae-free”
Stabilise the water: increase the mineral content for anti-algae agents (JBL StabiloPond) to work more effectively
Combat algae: add a suitable anti-algae agent (JBL AlgoPond) into the water
Limit nutrients: remove the nutrients of dying algae (JBL PhosExPond)

AlgoPond Direct is easy to use
Determine the required quantity for the garden pond. Spread the calculated quantity on the existing algae surface. Remove the dying and dead algae with the pond fish net. After use do not bathe in swimming ponds for 24 hours.
Dosage: 30 – 50 ml per about 1000 l pond water.

This product is unfortunately no longer available

JBL AlgoPond Direct 250 g

Art. no.:
EAN Code:
0,25 kg
8000 l
Volume packaging:
0.540 l
Gross weight:
285.000 g
Net weight:
250 g
Weight factor:
80/84/80 mm

JBL AlgoPond Direct 1 kg

Art. no.:
EAN Code:
1 kg
30000 l
Volume packaging:
2.200 l
Gross weight:
1049.000 g
Net weight:
1000 g
Weight factor:
130/130/130 mm
Why should I only use JBL AlgoPond Direct in the morning?

When there is an algae problem in the garden pond the pH value varies greatly during the day. This is due to the algae’s CO2 consumption. In the evenings it is often significantly above 8.5. JBL AlgoPond Direct achieves its best results with pH values under 8.5. JBL AlgoPond Direct should be used in the mornings, because the pH in the garden pond has in this time of day its lowest value. JBL AlgoPond Direct also raises the pH value temporarily.

Can the pond care products JBL StabiloPond Basis, JBL StabiloPond KH, JBL OxyPond, JBL FilterStart Pond, JBL AlgoPond Direct*, JBL PhosEx Pond Filter, JBL SediEx Pond, JBL AlgoPond Sorb, JBL AgoPond Forte*, JBL AlgoPond Green*, JBL PhosEx Pond Direct and JBL BactoPond be used with an operating UV-C water clarifier without any problems or should the UV-C unit be switched off?

In simple terms we can say that with the application of the liquid products JBL AlgoPond Sorb, JBL AgoPond Forte*, JBL, AlgoPond Green*, JBL PhosEx Pond Direct, JBL BactoPond the UV-C water clarifier should be temporarily switched off so that the active substances will not be destroyed. Please look up the time periods in the respective operation instructions.

With JBL StabiloPond basis, JBL StabiloPond KH, JBL OxyPond, JBL FilterStart Pond, JBL AlgoPond Direct*, JBL PhosEx Pond filter, JBL SediEx Pond the UV-C water clarifier may remain in operation.
* Labelling according to EU Directive 98/8/EC: Use biocides safely. Always read the label and product information before use!

Blog – Opinions & Experiences


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A few algae in the pond do not pose a problem and even form a component of a healthy pond. But once the water turns green or „blanket weed“ algae become rampant, you then have a problem which needs fixing. Effective and longterm algae control consists of three steps.

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Algae in the Pond – An Outline

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An anti-algae agent alone is no solution

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For EU legal reasons, JBL has decided to discontinue its production of JBL AlgoPond Direct. Fortunately, JBL has a second algae product in its range to take its place without any drawbacks:

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Laboratories and calculators

Pond laboratory / calculator

This worldwide unique pond laboratory gives you dedicated support to combat problems with algae and cloudiness in your pond.

Pond Guarantee

JBL guarantees you a pond without algae problems if you follow our 3 steps. If by any chance the algae have not disappeared by the end of step 3, please contact the JBL Online Pond Laboratory directly. There you will receive comprehensive online advice. In the unlikely event of your algae problems not being solved, despite your consultation with us, you will be refunded with the purchase price of all JBL 1-2-3 algae-free products purchased during the current calendar year.
Worth reading

Pond care

The different seasons (at least in Central Europe) require different care measures. Even in countries where there are no cold winters with minus degrees, factors like rainy seasons, dry seasons or perhaps a summer with particularly high temperatures all play a decisive role for the garden pond.

Algae problems

Why are algae a problem? What algae species can be found in the pond and how can you combat them effectively and for the long-term?

1-2-3 algae-free concept

Sooner or later every pond owner has to deal with the algae issue. Sometimes I’s the first time they’ve had to think about it and sometimes they have tried out various methods and treatments – unfortunately without any long term success. JBL has put scientists to work on that problem and they have worked out a concept which will guarantee success.


A picture is worth a thousand words! This also applies to the subject of the garden pond. In short films we show you how to solve problems and use products.


Do you have green water or thread algae? We’ll give you long term solutions for algae problems


Product tests & info

  • JBL AlgoPond Direct-Teichpflegeplan
    15 kByte
  • JBL Im Grosseinsatz gegen Fadenalgen
    2 MByte

safety instructions

Safety information
- safety information in accordance with GHS
Signal word
Hazard symbol
  • GHS07
Risk phrase
H302: Harmful if swallowed.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
safety note
P102: Keep out of reach of children.
P103: Read label before use.
P261e: Avoid breathing vapours.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P321: Specific treatment (see on this label).
P405: Store locked up.
P101: If medical advice is needed, have product container or label at hand.
P501a: Dispose of contents/container in accordance with local/regional/national/international regulations.