Products

The pH is mathematical reference for the amount of acids dissolved in water.The pH can have a value between 0 and 14. A low pH means the water is a...

Phosphate Plus In aquariums with a lot of corals, a shortage of phosphate can occur, this can easily be supplemented with Phosphate Plus.

Pump Clean Powerful cleanser/descaler for (flow) pumps and other devices. Regular cleaning of your pumps is necessary for efficient operation, lon...

Silicate Ex Too high a silicate or silicic acid content is the main reason for the presence of silica algae (brown algae). By removing the silicat...

ColomboTest Stirrer. The Colombo test stirrer is the ideal aid for testing the water. The stirrer keeps the water sample moving so that you have...

Nitrate Plus In aquariums with a lot of corals, a shortage of nitrate can occur, this can easily be supplemented with Nitrate Plus. Dosage+ 1 mg/l...

With Colombo Phosphate Ex the removal of phosphates has become simple. With just one dose the desired amount of Phosphates will be removed instantl...

Colombo GH+ increases the total hardness of the pond water. GH stands for total hardness and is the measurement of the total amount of dissolved mi...

Colombo KH+ increases the carbonate hardness (KH) in your planted aquarium - this is done to ensure a stable pH level. KH readings will vary enormo...

Calcium (Ca) Test Professional drop test for precise determination of Calcium content in seawater. The handy visualised instructions for use, incl...

Cobrasal® Active against skin parasites on marine fish such as Oödinium, Cryptocaryon and others. Symptoms on affected fish vary depending on the ...

Femsal® Active against skin parasites on ornamental marine fish such as Oödinium, Cryptocaryon and others. Femsal can be safely used in the marine...

Iron (Fe) Test Professional drop test for precise determination of iron content in seawater. The handy visualised instructions for use, included t...

Carbonate Hardness (KH) test Professional drop test for precise determination of KH in seawater. The handy visualised instructions for use, includ...

Magnesium (Mg) Test Professional drop test for precise determination of Magnesium content in seawater. The handy visualised instructions for use, ...

Nitrate (NO₃) Test Professional drop test for precise determination of nitrate levels in seawater. The handy visualised instructions for use, incl...

Description Simple and fast pH test for seawater. Colombo offers tests designed and manufactured specifically for saltwater. General information a...

PO₄ Test Professional drop test for precise determination of phosphate content in seawater. The handy visualised instructions for use, included te...

Potassium (K) Test Professional drop test for precise determination of potassium levels in seawater. The handy visualised instructions for use, in...

Sillicate (SiO₂) Test Professional drop test for precise determination of Silicate content in seawater. The handy visualised instructions for use,...

Description Colombo Marine Nitrate Zorb is a high quality, nitrate selective ion exchange resin. It safel

Description Colombo Marine Phosphate Zorb is a premium quality phosphate selective ion exchange resin. It