Note: OCTO products are offered exclusively for the German-speaking market

Note: OCTO products are offered exclusively for the German-speaking market

Note: OCTO products are offered exclusively for the German-speaking market

Note: OCTO products are offered exclusively for the German-speaking market

Note: OCTO products are offered exclusively for the German-speaking market

Electric foam pot cleaner for automatic cleaning of the reaction tube

• for original foam cup of the series 150
• Quiet 12 V motor
• Automatically cleans the reaction tube of the skimmer
• for constant skimming performance

Nitrite (NO2) is a chemical nitrogen compound and contains nitrogen as major constituent. The majority of nitrite in the aquarium reacts to nitrate (NO3) as a result of nitrification. Nitrification refers to the bacterial oxidation of ammonium (NH4) and ammonia (NH3) to nitrite (NO2) and subsequently to nitrate (NO3).

Especially in freshly equipped salt water aquariums significant nitrite overconcentration can occur, especially if bacteria cultures aren’t sufficiently present.

Typically, established aquariums with a functioning nitrification do not show critical nitrite concentrations. If the concentration should rise nevertheless, ammonia (NH3) absolutely needs to be measured too. Reasons for this, could be a fish overpopulation, overfeeding but also the use of medication could have disturbed or even destroyed the bacteria cultures.

The GIESEMANN nitrite test is a specifically precise test focussing on the lower range ranging to 2.0 mg/l for the regular analysis of the water values.

Potassium is a chemical element with the element symbol K

The name potassium originates from its discovery within potash. Potassium is one of the most prevalent elements and appears in numerous minerals worldwide.

Potassium should always be contained in sufficient concentrations in sea water aquariums.

A potassium shortage typically leads to a reduction or a complete stop of coral growth.

A potassium shortage in stone corals expresses itself in a fading of the coral colours. Over or under concentrations of potassium in salt water can be corrected by a partial water exchange.

The optimal potassium concentration in a salt water aquarium ranges between 360 and 410 mg/litre.

Iron is a chemical element, with the element symbol Fe.

Iron is a trace element that is indispensable to life for almost all species, in animals especially for the formation of blood. Nevertheless, the iron content in salt water aquariums should be kept within certain limits. If for example an over proliferation of algae occurs, despite a low nutrient supply, the reason could be an overconcentration of iron.

Typically, iron-based phosphate adsorbers release iron into water. Over concentrated iron can be reduced by active carbon. Skimming greatly reduces the iron content of water.

The iron content in a salt water aquarium should ideally be 0.15 mg/l.

Ammonium (NH4) and ammonia (NH3) are chemical compounds.

Ammonium (NH4) reacts to very toxic ammonia (NH3) in case of high pH values and elevated temperatures (typical for salt water aquariums). Ammonia is a chemical compound consisting of nitrogen and hydrogen and is created during the natural decomposition of dead plants and animals as well as animal excrements.

An overconcentration of ammonia can be reduced through an efficient nitrification (e.g. promoted by starter bacteria) and through a regular water exchange. Suddenly occurring elevated ammonia concentrations (e.g. resulting from dead animals) should immediately be removed by a generous water exchange.

Ammonia is very poisonous to all aquarium species and should therefore be measured regularly. The GIESEMANN NH3 test analyses the total ammonium, which is the sum of ammonium (NH4) and ammonia (NH3). This test is specifically developed for sea water aquariums, i.e. for salt water.

The total value of ammonium in the aquarium should be below 0.2 mg/l.