Foire aux questions

Eau douce

Gluing rocks and decoration with silicone

Hello, lava is not really the best choice for an aquarium: the material is rough, has sharp edges and bears high risk of injuries for fish, e.g. in case they are frightened and crash...

Eau douce Soins

Green algae only in the stronger lighted part of the aquarium

Hello, this indicates that the light intensity in the front part is considerably higher (this is not necessarily obvious to the eye!). In such cases it is worth a try to reduce the...

Eau douce Soins

How are fertilizer tablets optimally applied?

Hello, To 1.:it is not necessary to dig them in. It is sufficient to place the tablets near the roots or slightly push them into the gravel.They usually quickly stop doing so once...

Eau douce Matériel technique

How can I build a bypass filter for denitrification?

Hello, the construction principle is actually very easy:all you need is a chamber equipped with intake and an outlet connectors, which is filled with sera siporax Professional (0.5...

Eau douce Maladies

How can I help a fish with unspecific symptoms?

Hello, without specific disease symptoms you will unfortunately not be able to do much more than put the fish into a separate tank, provide plenty of oxygen in the water (possibly...

Eau douce Soins

How can I lower the KH value?

Hello, this is possible with pH lowering products such as sera pH/KH-minus, but also by sera super peat (blackpeat granulate). These products are necessarily based on acids...

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