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Today we’re continuing on the topic of water tests, with Part II of the blog post from 22.01.2023. Enjoy reading.

Aquarium water tests are similar to a blood test at the doctor's. Water tests allow you to take a look at the water composition.

It’s important to check the CO2 and fertiliser in your aquarium to make sure your plants grow the way you want them to.

Biologist Heiko Blessin explains in an easy to follow way what the individual water values mean.

Lots of scientists & experts swear by the JBL water tests, but why?

How do high temperatures affect our aquarium fish? And what can you do about it? Let us tell you!

Water tests for aquariums: Aquarium water can be clear and still toxic to aquarium inhabitants!

What makes for ideal plant growth? All the factors for good plant growth: light, LED, tubes, fertilisation, fertilisation quantity, fertilisation monitoring, influence of water conditioners, chelated iron.

Cuando las algas son excesivas en el acuario, esto siempre es por una o dos causas: El biólogo Heiko Blessin explica en este vídeo de forma muy clara y comprensible por qué las algas empiezan a proliferar y lo que nosotros los acuariófilos podemos hacer para impedirlo. ¡Jamás antes se había tratado el tema de las algas en el acuario de forma más fácil y clara!

Based on our own experience in customer service and the many messages and questions we receive, we have put together the typical mistakes beginners may make. The experienced aquarist might well smile, but if they are honest, these are mistakes we all made at the start, aren’t they?

Think back to your childhood. Your bedroom was a small area for you to let your imagination run free. And unsurprisingly you felt like re-decorating and rearranging it at least every three weeks.

Granted, nobody really enjoys testing water. It’s time-consuming and sometimes you’re not sure which colour on the chart your water result matches. But water testing really can be lifesaving – at least for your fish!

Water changes have several additional benefits: potentially dangerous substances, such as nitrates and phosphates, are removed from my pond, minerals are added, and any colour cast in the water is reduced.

Our 15 expeditions have taught us something new: In natural waters nitrogens (ammonium/ammonia, nitrite and nitrate) and phosphates are ALWAYS scarce and below the limit of detection. Only when humans have an influence on the natural water, can nitrogens and phosphates be found.

The first step shows you how to achieve perfect water values and the second one how to modify your re-dosing to suit consumption. Unlike with standard fertilisation you adjust the fertiliser amount to your aquarium and not only save money but also get perfect looking plants.

The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

Instead of comparing the colour change of the water on a colour scale, a second measuring glass with the aquarium water is put on the colour field of the colour chart.

With the right products, aquarium care is not only easy, but can also be a lot of fun! The formulas that make up JBL products are based on intensive research and, especially with care products, their effects are not always immediately visible, yet in the medium and long-term they’ll result in a beautiful aquarium and healthy fish.

The three most important factors for your plant aquariums are the nutrient balance, the substrate and the lighting.

The subjects of plant care and fertilisation can sometimes take on a philosophical element. There are a lot of approaches and a lot of them can lead to success. It is important that your chosen approach suits your aquarium.

In the aquarium scene we often hear people talking about “accurate” and “inaccurate” tests. But mostly they mean a rougher or finer scaling of the output values.

We are often asked: “How much fertiliser do I need for my aquarium?” On all product packaging you find dosage recommendations which give you initial information on how to start the fertilisation.

The water in your aquarium is outstandingly significant because it is a life-giving element for fish and plants.

Professional water analysis sounds very expensive. But the professional water testing in your aquarium or pond at home also works on a high level and above all it is simple and inexpensive.

If we transfer this Liebig’s Law of the Minimum to the aquatic field it quickly becomes clear how important balanced fertilisation is for plant aquariums.

Ideally water looks crystal-clear, yet pollutants are often invisible. That’s why clear water might still be toxic.

Simply put, Liebig’s Law of the Minimum states that the growth of plants is limited by the scarcest resource. Adding a nutrient which already exists in abundance does not influence the growth.

Unlike in natural waters, aquariums with fish mostly have a surplus of nutrients caused by feeding and the resulting fish excrement. Thus nitrates and phosphates in large (often too large!) quantities are available for the plants.

Even if your fish have fallen ill, it is not too late. Nonetheless we want to save the fish from getting ill. About 90 % of all fish diseases are the result of a weakening of the immune system.

Dear Chris, dear Community, Thank you for your question. A luxuriant plant growth is based on the elements lighting, CO2 supply and an optimal fertilisation with nutrients.