Foire aux questions

Eau douce Soins

What to do in case of brush algae?

Hello, the following approach is effective in the long run:regulate the ratio betwen nitrate and phosphate in a way that the plants are just sufficiently provided with nitrogen and...

Eau douce Soins

What to do in case of floating algae in the aquarium?

Hello, reducing the nitrite value is of course good, since nitrite is very toxic for fish. However, it has nothing to do with algae growth. As an immediate measure, you can bind the...

Eau douce

Que faire en cas de turbidités ?

Bonjour, La turbidité peut être due aux infusoires (microorganismes) ou au tourbillonnement de l'abrasion du sable, qui se produit souvent dans les aquariums qui ne sont pas encore...

Bassin Poissons

What can I do if goldfish multiply too strongly?

Hello, adding predators is basically alright, although I surmise that we are not alking "real" perches here - these are not suitable for common garden ponds - but probably sunfish (L...

Eau douce

Water smells bad

Hello, it is important to act without delay, because the unpleasantly smelling gases are very toxic for the fish! In case coarse gravel is used as bottom material, it is helpful if...

Eau douce Matériel technique

Water becomes cloudy after a water change

Hello, it sounds as if many (basically beneficial!) bacteria (= milky cloudiness) are swirled up from the bottom gravel during the water change and simply require some time for...

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