MARINE POWER ADVANCED KH/ALKALINITY

MARINE POWER ADVANCED KH/ALKALINITY has been designed for self-preparation of concentrated solution to raise the level of KH – alkalinity (bicarbonate level) in a marine aquarium. The product is intended mainly for larger tanks with a predominance of stony corals. The main active element of the powder is a substance that increases the alkalinity of water. In case of smaller consumption of bicarbonates, we recommend using a ready-made liquid – MARINE POWER EASY KH/ALKALINITY.

The importance of KH in marine aquarium
KH (alkalinity) is one of the most important parameters of the salt water in marine aquarium. Alkalinity of water depends directly on the level of bicarbonate anions (HCO3-). The higher the amount of these ions in the water, the higher KH of the water. Bicarbonate anions are part of the pH buffer, which makes the pH of the sea water almost constant. Unfortunately, in many home aquaria pH fluctuates daily, which is caused mainly by low levels of KH. Bicarbonate ions are also the main source of the building material for coral skeletons, the basic component of which is calcium carbonate CaCO3. It is necessary for corals growth to keep appropriate level of KH (bicarbonates).

The optimal level of KH
The natural alkalinity level on coral reefs is about 7 dKH. In the majority of domestic aquaria, the level of KH should be kept as constant as possible between 7 and 10 dKH. It is not recommended to raise KH too high or too quickly, because it can be dangerous for LPS and SPS corals and it can also negatively affect biofiltration in aquarium.

The use of MARINE POWER ADVANCED KH/ALKALINITY
In a properly functioning marine aquarium, bicarbonate ions (HCO3-) are constantly consumed, mainly due to the calcification process. Carbonates are consumed not only by calcifying corals (SPS and LPS), but also by molluscs (snails, bivalves) or calcareous algae. The depleting of bicarbonate should be regularly supplemented with MARINE POWER ADVANCED KH/ALKALINITY. Consumption HCO3- depends on many factors, such as water temperature, lighting, type of stocking in the aquarium and other, and their level requires regular control. To determine the level of KH, we recommend MARINE POWER XACT TEST KH/ALKALINITY. With the test you can easily determine the current level of KH and its loss, e.g. during the week.

Determining of the average daily loss of KH
If mainly stony corals are kept in the aquarium, the daily KH loss may be significant but may vary on a daily basis, therefore we recommend calculating average daily KH drop (bicarbonate consumption). To determine that, two tests of KH should be made with an interval of 4-5 days. It is important that both tests are made at about the same time of the day and that water changes (if done every week) are made at least 24 hours before or after the tests. This way, they will not affect the results. In a healthy aquarium the first test should be higher than the second one. Then we subtract the second result from the first, and divide the obtained value by the number of days (minus 1), between both tests.

Example:
Day 1: KH = 8.5 dKH
Day 5: KH = 7.5 dKH
Decrease in KH = 8.5 - 7.5 = 1/4 days = 0.25 dKH per day
The result tells us by how much the daily KH supplementation should be increased. If the result is null or negative, there is no need for additional supplementation.
Please remember that consumption of bicarbonates will change with the growth of corals and other invertebrates in the aquarium. Therefore, this process should be repeated every couple of weeks.

Preparation and dosage
MARINE POWER ADVANCED KH/ALKALINITY is ideal for use in popular supplementation programs.
Preparation of 1 liter of supplement:
1. Using a kitchen scales weigh 84 g of the preparation.
2. Pour 800 ml of RODI water at room temperature (20˚C) into a container with a volume scale.
3. Add 84 g of MARINE POWER ADVANCED KH/ALKALINITY into the container filled with water and mix until the crystals are completely dissolved.
4. Top up the dish to 1 l (1000 ml) with RODI water.
5. If you need more liquid, use the table below (use only RODI water).

2 liters of supplement –168 g of the powder / 1600 ml of water, top up with water up to 2000 ml
3 liters of supplement – 252 g of the powder / 2400 ml of water, top up with water up to 3000 ml
4 liters of supplement – 336 g of the powder / 3200 ml of water, top up with water up to 4000 ml
5 liters of supplement – 420 g of the powder / 4000 ml of water, top up with water up to 5000 ml

Tropical’s MARINE POWER ADVANCED method is based on dosing identical amounts of three supplements: MARINE POWER ADVANCED CALCIUM, MARINE POWER ADVANCED KH/ALKALINITY, MARINE POWER ADVANCED MINERAL SALT, therefore it is crucial that the preparation of the solutions is carried out according to the above instructions. Although it is possible to dose the solutions manually, in the MARINE POWER ADVANCED method we recommend using dosing pumps that make the supplementation easier and more accurate.
Due to the potential stress for corals, the daily increase in KH should not exceed 1 degree dKH.

Note: Excess and deficiency of bicarbonates ions can be both harmful to marine invertebrates, so you should regularly check the level of KH in the aquarium.

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MARINE POWER ADVANCED KH/ALKALINITY

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