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Water maintenance.

Correcting values for
a healthy marine aquarium.


In a new marine aquarium it takes times for the biology to establish. We offer several products to correct and maintain your water values.

Products for a stable
aquarium & healthy fish.


Reduce incorrect values &
bring balance in your aquarium.


Our maintenance products.


With these Colombo products you will correct and maintain your water values in no time!
Our products will make sure your water will stay healthy and stable.

Bacto Start

Bacto contains a unique blend of specially selected bacteria strains, which helps to achieve a quick and complete biological balance in your marine tank. When starting it is essential to establish a biological balance as quickly as possible to prevent an outbreak of unsightly algae. After the start, we recommend adding Colombo Bacto weekly to maintain a thriving environment where fish and corals are at their best.

Bacto Balls Start

Bacto balls impregnated with the unique Colombo bacteria for marine aquariums. DNA screening techniques has been used to select the best strains. Use Bacto balls for clean and clear water, optimal biology, healthy corals and improved polyp expansion. Algae growth is also reduced and organic waste decomposition supported.

KH Plus

Use KH plus to maintain an optimal Carbonate Hardness (KH) between 8 and 12°DH. When the KH is kept between these values pH will remain stable at the correct value. Colombo KH plus is available in a ready-to-use liquid. We also have an economical powder form. KH plus powder is an economical alternative for a stock solution to help keep the KH value at the desired level.

Magnesium Plus

Magnesium Plus contains ingredients; which are harvested from natural seawater by means of solar evaporation. Magnesium plus is available in a ready-to-use liquid; which can be easily dosed. We also have an economical powder form. With the powder you can make a stock solution, to correct the values in a very cost-effective way.

Phosphate Ex

With Colombo Phosphate Ex the removal of phosphates has become simple. With just one dose the desired amount of Phosphates will be removed instantly. Our unique formula offers unparalleled results! Just dose 1 ml of Phosphate Ex to remove 5 mg of Phosphates from the water – done. It is that simple!

Nitrate EX

Nitrate Ex is the nutrient for bacteria that supports the breakdown of nitrates. These bacteria cannot develop well without this nutrient. Nitrate Ex must be added daily. After approximately 14 days the bacteria will have grown into a large colony resulting in a significant reduction in nitrates.

NP Pellets

NP Pellets offer nutrition to bacteria that supports the breakdown of nitrates. These bacteria cannot develop well without this nutrient. The NP pellets can be used in a fluid bed filter. After approximately 14 days the bacteria will have grown into a large colony resulting in a significant reduction in nitrates.

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 silicate with Silicate Ex, the algae can no longer grow and disappear. Normally a maximum silicate content of 0.50 mg/l is acceptable, but to remove silica algae, the content must be temporarily reduced to 0.

Nitrate Zorb

Colombo Marine Nitrate Zorb is a premium-grade, NITRATE selective, ion-exchange resin. It removes NITRATE safely from seawater through selective ion-exchange. Our premium product works in a wide range of pH and temperature conditions. Marine Nitrate Zorb can be used in conjunction with our Marine Phosphate pads.

Phosphate Zorb

Colombo Marine Phosphate Zorb is a premium-grade PHOSPHATE selective ion exchange resin. It removes both ionically and chemically bound Phosphate from marine water quickly and safely through selective ion exchange. Our high-performance product works in a wide range of pH and temperature conditions, and Marine Phosphate can be used in combination with our Marine Nitrate pads.

Pump Clean

Powerful cleanser/descaler for (flow) pumps and other devices. Regular cleaning of your pumps is necessary for efficient operation, longer life, and retention of warranty. Immerse devices in the cleaning solution and leave for several hours. Rinse with tap water before returning to aquarium. Contents: 1000 ml. Sufficient for 10 litres of cleaning solution.

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