Themeworld

Koi ponds

Koi ponds often have a different design to “normal” garden ponds. This is due to the fact that koi regard pond plants as a great supplement to their daily diet and also because their high metabolism leads to heavy soiling. This can be remedied by a bottom drain and a good filter. The gravel is often omitted to prevent the bottom drain from clogging.

Not all Koi fans like marshy areas, where putrefaction processes can take place, germs can reproduce and where the shallow depth heats up the pond in summer. The use of a little technology will reward you with an efficiently running pond, in which the animals are the centre of attention. Keeping grey herons away from koi ponds is an important issue (see Pond dwellers ).

In view of the size koi can grow to, there should be at least 2000-3000 litres available per fish. The Ogata koi farm in Japan provides 256 cubic metres of water for each koi! This is a brief reminder not to overstock your pond, which is one of the main mistakes in koi keeping. The larger water volume also impacts the animals’ health positively because the germ load is lower and the risk of infection decreases.

A word about cookies before we continue

The JBL Homepage also uses several types of cookies to provide you with full functionality and many services: We require technical and functional cookies to ensure that everything works when you visit this website. We also use cookies for marketing purposes. This ensures that we recognise you when you visit our extensive site again, that we can measure the success of our campaigns and that the personalisation cookies allow us to address you individually and directly, adapted to your needs - even outside our website. You can determine at any time - even at a later date - which cookies you allow and which you do not allow (more on this under "Change settings").

The JBL website uses several types of cookies to provide you with full functionality and many services: Technical and functional cookies are absolutely necessary so that everything works when you visit this website. In addition, we use cookies for marketing purposes. You can determine at any time - even at a later date - which cookies you allow and which you do not (more on this under "Change settings").

Our data protection declaration tells you how we process personal data and what purposes we use the data processing for. tells you how we process personal data and what purposes we use the data processing for. Please confirm the use of all cookies by clicking "Accept" - and you're on your way.

Are you over 16 years old? Then confirm the use of all cookies with "Noticed" and you are ready to go.

Choose your cookie settings

Technical and functional cookies, so that everything works when you visit our website.
Marketing cookies, so that we recognize you on our pages and can measure the success of our campaigns.
I accept the YouTube Terms of Service and confirm that I have read and understood the YouTube Terms of Service .

PUSH messages from JBL

What are PUSH messages? As part of the W3C standard, web notifications define an API for end-user notifications that are sent to the user's desktop and/or mobile devices via the browser. Notifications appear on the end devices as they are familiar to the end user from apps installed on the device (e.g. emails). Notifications appear on the end user’s device, just like an app (e.g. for emails) installed on the device.

These notifications enable a website operator to contact its users whenever they have a browser open - it doesn’t matter whether the user is currently visiting the website or not.

To be able to send web push notifications, all you need is a website with a web push code installed. This allows brands without apps to take advantage of many of the benefits of push notifications (personalised real-time communications at just the right moment).

Web notifications are part of the W3C standard and define an API for end user notifications. A notification makes it possible to inform the user about an event, such as a new blog post, outside the context of a website.

JBL GmbH & Co. KG provides this service free of charge, and it is easy to activate or deactivate.