Résultats pour le mot-clé: Matériel technique

Eau douce Matériel technique

How can I regulate the suction with the sera gravel washer?

Hello, you can regulate the water flow and, correspondingly, the suction by simply covering the free end of the hose partially with your thumb. Best regards sera GmbHDr. Bodo...

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 Soins Matériel technique

How long do pH measuring electrodes last?

Hello, as an average, the electrodes will last approximately 2 years from the date of manufacture. You will find the date on the shaft of the electrode itself - the code consists of...

Eau douce Matériel technique

How often should I clean the filter media?

Hello, prefilter materials (in particular, filter wool!) should be regularly and thoroughly rinsed or replaced at the latest when they start to become clogged. Biologically  active...

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