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Ph in the aquarium

maintenance, care, compatibility

The effect of acid-base balance on aquarium vegetation and fish

This can be done quite simply by adding a little ordinary baking soda into the water medium, which absorbs the acid. The normal dose is 5 g of powder per 100 liters.

A good way, if you consider that even its overdose does not increase the level of this indicator above 8 units.

You can also add to the aquarium salts of sodium and potassium (phosphate of these substances) in the same proportion.

Pet shops sell special products for pH balancing. For example, TROPIC MARIN Triple-Buffer quickly raises the level to 8 units.

Tetra pH / KH Plus, safe for fish and plants, is also popular. You need to know that adding branded mixtures in water may cause foam.

However, it does not pose a danger to living creatures and rather quickly dissolves.

But still experienced aquarists recommend not to bring the situation to the extreme, advise to produce a powerful aeration of aqua (organics oxidizes faster), to make regular water changes and periodically clean the acidifying soil.

There are many ways to do this. The first is the addition of natural sour peat.

Quite a common way, but you should know that not every peat is suitable, but only lying at a depth of dark brown color.

Before use, it should be checked in a separate container, filled with water and periodically checking the pH level during the day. If the solution shows an increase in acidity, then peat is suitable.

Before adding to the aquarium, it must be boiled in distilled water at the rate of 5-7 g per 1 liter. After that, in small portions, the resulting solution can be added to the aqueous medium, periodically making balance measurements.

Of course, in commercial networks there are commercial means for lowering the acid-base balance, for example pH-Down. Many such products contain phosphoric acid, which maintains a good level of acidity at around 6.5 units.

It is necessary to take into account, however, that such additives significantly accelerate the growth of aquatic vegetation, so they should not be abused.

There are also products, the main ingredient of which are oak bark or alder blossoms. It is necessary to use firm mixes strictly according to the instruction, periodically carrying out the corresponding measurements.

pH WATER in an aquarium or the ACIDITY of WATER in an aquarium!

Determines the neutral, acidic and alkaline reaction of water at a certain concentration of hydrogen ions.

In chemically pure water, electrolytic dissociation occurs – the decomposition of molecules into hydrogen ions (H +) and hydroxyl (OH-), the number of which in it at 25 ° C is always the same and equals 10-7 g * ion / l. Such water is neutral.

The negative logarithm of the concentration of hydrogen ions is conventionally used to designate the pH value and in this case is equal to 7. If there are acids in the water (not chemically pure water), the amount of hydrogen ions will be more than hydroxyl – the water becomes acidic with a lower digital pH. Conversely, hydroxyl ions will dominate in alkaline water and the pH will increase.

Aquarium water with pH parameters:

– from 1 to 3 is called / considered strongly acidic;

– from 5-6 slightly acidic;

PH parameters can change during the day, due to the variable concentration of carbon dioxide in aquarium water, which in turn is stabilized by constant aeration.

Sharp pH fluctuations are harmful and painful for aquarium fish and plants. Most aquarium fish prefer a pH of 5.5 to 7.5.

HOW TO CHANGE: lower / increase pH acidity of aquarium water:

– If it is necessary to lower the pH – acidify the water with peat extract (well, or with special preparations from the Pet Shop);

– If you need to increase the pH (strengthen alkalinity) – using baking soda;

MEASURING the pH of the aquarium water acidity:

1. In many pet stores sold – testers (litmus paper with phenolphthalein). Actually following the instructions on the package and on the scale, you can determine the pH parameters.

There are specials. measuring device – PiAshmeter. For home aquariums is not used (expensive, and why not at all). After all, the main thing is not frequent measurement of pH parameters, but conditions of keeping fish and aquarium.

In a well-kept, not overcrowded aquarium, not clogged to the top with plants, with aeration – the pH will always be normal and often it is not necessary to measure.

Many believe that even the slightest change in pH is very harmful for aquarium fish, since, for example, water with pH = 6.5 is 10 times acidic, which has a pH = 6.6. Many aquarists are deeply convinced that all fish in nature live in a completely stable and narrow pH range.

They believe that fish do not know how to adapt to changes in pH, and if this happens, they immediately die.

What really happens?
Many aquarists think that the pH level is always stable in the wild, but in reality this is not the case – it often fluctuates significantly. In Indian waters, daytime pH is much higher than during the night.

In addition, the pH is lower in autumn and higher in spring. In the fall, for example, the leaves fall and rot, releasing acids into the water (for example, tannin) that acidify the water.

In the spring, there is a large amount of monsoon rains that supply oxygen to the water, thus raising the pH.

What influences the acidity of aquarium water? What determines the pH in an aquarium?

This can be done quite simply by adding a little ordinary baking soda into the water medium, which absorbs the acid. The normal dose is 5 g of powder per 100 liters.

A good way, if you consider that even its overdose does not increase the level of this indicator above 8 units.

You can also add to the aquarium salts of sodium and potassium (phosphate of these substances) in the same proportion.

Pet shops sell special products for pH balancing. For example, TROPIC MARIN Triple-Buffer quickly raises the level to 8 units.

Tetra pH / KH Plus, safe for fish and plants, is also popular.

You need to know that adding branded mixtures in water may cause foam. However, it does not pose a danger to living creatures and rather quickly dissolves.

But still experienced aquarists recommend not to bring the situation to the extreme, advise to produce a powerful aeration of aqua (organics oxidizes faster), to make regular water changes and periodically clean the acidifying soil.

These devices allow not only to measure the level of acidity of the aquarium environment, but also to automatically regulate it, lowering the alkali concentration. Their principle of operation is based on the exact dosage of carbon dioxide in the water.

In principle, this unit can successfully replace all the means and methods of lowering the pH level.

Some experts recommend pH Controller Evolution DeLuxe – an easy-to-use and highly reliable device consisting of an electronic unit with a display, a Profi-Line electrode, two calibration solutions and a calibration station. One pressing of the corresponding button, input of one parameter, and the device automatically brings the necessary amount of CO2 into the water.

The German company EHEIM, which has long been producing elite equipment for aquariums, has distinguished itself in this matter. Her product with a carbon dioxide reactor can work around the clock, maintaining the right balance of acid and alkali in hard water.

It should be serviced no more than once a month.

Maintaining optimal acid-base balance is a necessary necessity. The life of an ornamental fish depends on it, and there is no exaggeration in this statement.

LIGHTING FOR AQUARIUM BY YOUR OWN HANDS – VIDEO DESCRIPTION

ROUND AQUARIUM – DESIGNING CARE DESIGN PHOTO VIDEO.

How to lower the ph in the aquarium :: aquarium water ph :: Aquarium fish

We decided to make fish, the water in the aquarium was settled for a week, the soil was boiled, and the plants were planted. The compressor is connected, and everything is done according to the instructions, but … the fish, snails, shrimps do not survive.

The reason for this may be inappropriate pH level of water. Tap water that has settled down for 1-2 weeks should be softened by lowering its pH by oxidation.

The question “opened a pet store. Business is not going. What to do? “- 2 answers

1. Provide your pet with balanced water, making it as close as possible to the one in which they live in nature. Information on the required pH level for them can be obtained in specialized stores or in reference books.

Measure the composition of water pH tester or other device.

2. Filter the aquarium water with a peat filter. Such filtration saturates water with humic acids, which lower the pH to the neutral point (7.0).

Peat also reduces the carbonate hardness of water and prevents bacteria that injure fish from reproducing. Do not forget to replace such a filter – it is washed off with time.

3. Put a snag into the water. The snag will act not only as a decorative element – it also contributes to lowering the pH of the water, although insignificantly, but sometimes to the right level.

Of course, not any snag is suitable, and it requires preliminary heat treatment with salt water and long soaking. However, snags can become indispensable for some species of fish.

4. Enter carbon dioxide CO2 into the aquarium. To do this, use special cans with gas, certain devices, or even a bottle of yeast.

This will not only lower the pH level to the one needed for fish by oxidizing water, but will also accelerate the growth of aquarium plants.

5. Use acid buffer. The buffer can be considered a soil of special granules, commercially available. Buffering is provided by ions of bicarbonate (bicarbonate) and carbonate (ions of carbonate salts).

Insufficiently buffered water is more susceptible to abrupt changes in pH, as opposed to well-buffered.

6. Replace a part of water with softer water (it can be boiled or acidified with phosphoric acid) or water with reverse osmosis (purified). The addition of water, the pH of which should be below 7.0, should be made in small portions in order to avoid sudden changes in the acid-base balance.

You need to constantly monitor changes in the pH level in order to be aware of what is happening in your tank and respond in time.

One of the most important components of the aquarium world is water, as the habitat of aquarium fish and plants.

The parameters of the aquarium water, its characteristics directly affect the well-being of your pets and the state of the plants. It is no secret that dirty, muddy water ruins the fish, spoils the appearance of the aquarium, however, the clear water does not always mean that its composition is perfect.

The main parameters and indicators of the quality of aquarium water are:

– Aquarium water hardness (hD);

– Hydrogen indicator of water “Acidity of aquarium water” (pH);

– Redox potential (rH);

AQUARIUM WATER HARDNESS (hD) – due to the presence of soluble calcium and magnesium salts in water. Their concentration in aquarium water is the GENERAL HARDNESS, which can be divided into TEMPORARY – CARBONATE and PERMANENT – NON-CARBONATE.

The temporary hardness of aquarium water (CN) is the concentration of bicarbonate salts of calcium and magnesium, formed from weak, unstable carbonic acid. Such rigidity can vary during the day.

For example, in the daytime, aquarium plants during photosynthesis absorb carbon dioxide that accumulates in the water. If carbon dioxide is not enough for consumption by plants, they will start to produce it from the bicarbonate composition, as a result of which the temporary hardness of the water will decrease.

The constant hardness of aquarium water (GH) is the presence of stable calcium and magnesium salts formed from strong acids — hydrochloric, sulfuric, or nitric.

Water hardness is essential for the life of the aquarium world. Firstly, calcium and magnesium salts are used in the construction of the skeleton and have an impact on the construction of the whole fish organism.

For different types of aquarium fish, the indicators of water hardness are different and failure to comply with them can lead to a deterioration of the health of the fish, a violation of the function of reproduction and fertilization of eggs.

The total hardness of the aquarium water is measured in German degrees (hD). 1 ° hD is 10 mg of calcium oxide in 1 liter of water.

Aquarium water with hardness parameters:

from 1 to 4 ° hD – is considered very soft;

from 4 to 8 ° hD – is considered soft;

from 8 to 12 ° hD – average hardness;

from 12 to 30 ° hD – considered to be very tough;

Most aquarium fish feel comfortable with hardness of 3-15 ° hD.

How to change the rigidity of the aquarium water:

1.) Increase stiffness.

– KH hardness can be increased by adding 1 tsp of baking soda to 50 liters, which will increase the performance by 4 ° dKH.

– 2 teaspoons of calcium carbonate to 50 liters of water at the same time will increase KH and GH by 4 degrees.

– Another measure for a smooth / gradual increase in water hardness is scattering and decorating the aquarium with seashells.

2.) Reducing stiffness (everything is more complicated here):

– use / add distilled water, which is sold in stores;

– use / add rain, snow, melt water from the refrigerator (must be clean, without turbidity and impurities).

– filter the water through an osmotic filter;

– filter water through peat (peat is added to the filter) or into a tank where water is settled;

– KN hardness is reduced by boiling water in an enamel pot for 1 hour, followed by settling for 24 hours;

– The natural water softeners are fast-growing plants: healer, hornpole, nayas, wallisneria.

HOW TO MEASURE the overall hardness of aquarium water at home without any specials. equipment and preparations (sample titration with soap solution):

The peculiarity of this method is that 10 mg of calcium oxide in 1 liter of water is neutralized with 0.1 g. clean soap.

1. 60-72% of household soap is taken, crumbled.

2. In a measuring cup (or other measuring vessel), water is poured (distilled, snowy, water melted from the refrigerator) – then distillate.

3. Soap powder (counted in grams) is added to the water so that it is possible to calculate the portion small in the resulting solution.

4. Pour 0.5 liters of the tested aquarium water into another dish and gradually add portions of the soap solution (0.1 gr.), Shake.

At first, gray flakes and quickly disappearing bubbles appear on the surface of the water. Gradually adding portions of the soap solution, we are waiting for all the calcium and magnesium oxide to contact – stable soap bubbles will appear on the surface of the water with a characteristic rainbow overflow.

This experience is over. Now we count the number of consumed soap portions, multiply them by two (the aquarium water was 0.5 liters, not 1 liter.). The resulting number will be the rigidity of the aquarium water in degrees.

For example, 5 servings of soap * 2 = 10 ° hD.

With careful experience, the error can be + -1 ° hD.

When obtaining a stiffness result of more than 12 ° hD, the measurement accuracy decreases, it is recommended that the experiment be re-diluted with aquarium water with 50% distillate, double the result.

Hydrogen indicator of water or “aquarium water acidity” (pH of aquarium water).

Determines the neutral, acidic and alkaline reaction of water at a certain concentration of hydrogen ions.

In chemically pure water, electrolytic dissociation occurs – the decomposition of molecules into hydrogen ions (H +) and hydroxyl (OH-), the number of which in it at 25 ° C is always the same and equals 10-7 g * ion / l. Such water is neutral.

The negative logarithm of the concentration of hydrogen ions is conventionally used to designate the pH value and in this case is equal to 7. If there are acids in the water (not chemically pure water), the amount of hydrogen ions will be more than hydroxyl – the water becomes acidic with a lower digital pH. Conversely, hydroxyl ions will dominate in alkaline water and the pH will increase.

Aquarium water with pH parameters:

– from 1 to 3 is called / considered strongly acidic;

– from 5-6 slightly acidic;

PH parameters can change during the day, due to the variable concentration of carbon dioxide in aquarium water, which in turn is stabilized by constant aeration.

Sharp pH fluctuations are harmful and painful for aquarium fish and plants. Most aquarium fish prefer a pH of 5.5 to 7.5.

HOW TO CHANGE the pH of aquarium water:

– If it is necessary to lower the pH – acidify the water with peat extract (well, or special preparations from the Pet Shop);

– If you need to increase the pH (strengthen alkalinity) – use baking soda;

MEASURING the pH of aquarium water:

1. In many pet stores sold – testers (litmus paper with phenolphthalein). Actually following the instructions on the package and on the scale, you can determine the pH parameters.

2. There are specials. measuring device – PiAshmeter. For home aquariums is not used (expensive, and why not at all). After all, the main thing is not frequent measurement of pH parameters, but conditions of keeping fish and aquarium.

In a well-kept, not overcrowded aquarium, not clogged to the top with plants, with aeration – the pH will always be normal and often it is not necessary to measure.

Redox potential (rH of water, ORP of water).

The essence of the redox process in aquarium water is that all substances in it react with each other. In this case, one substance gives up its electrons and charges positively (oxidizes), and the other acquires electrons and charges negatively (being restored).

As a result, a difference in electrical potentials arises between different-sized substances. Simply put: oxidation – this is the reaction of nitrite with oxygen, and recovery – on the contrary, the breakdown of nitrites with the release of oxygen.

The maximum oxidative potential of water is 42rH.

rH 40-42 – maximum oxidation (pure oxygen);

rH 35 – strong oxidation;

rH 30 – slight oxidation;

rH 25 – weak oxidation;

rH 20 – weak recovery;

rH 15 –significant recovery;

rH 10 – strong recovery;

rH 5-0 – maximum reduction (pure hydrogen);

Almost all aquarium fish and plants feel comfortable with rH 25-35. Some species prefer narrower parameters of this value.

Measured by rH special gauges.

Increase the rH of water by regularly changing the water, leaving it to clean the aquarium, as well as purging the air and using ozone.

SO:

We have learned about the basic parameters of aquarium water, the observance of which will be an absolute guarantee of the health of fish and the beauty of plants.

There are other values ​​/ parameters characterizing aquarium water. However, they are not as significant as hD and pH.

To maintain a home aquarium to know and follow them is simply not necessary. As Sherlock Holmes said: “… a sensible person carefully selects what he places in his brain attic.”

OPTIMAL PARAMETERS OF AQUAREMOUS WATER (hD of water, pH of water, ORP of water) I ATHERENTLY REACH THE BANAL CARE OF THE AQUARIUM AND FOLLOWING THE RULES OF THE CONTENT OF ITS RESIDENTS: do not make a dormitory out of the aquarium, do not overload it with plants, provide aeration and filtering;

See also:
CHANGE OF WATER IN THE AQUARIUM! WHAT WATER IS NEEDED FOR THE AQUARIUM? How much water should be defended for the aquarium?
Category: Aquarium Articles / EQUIPMENT AND FACILITY AQUARIUM | Views: 23 350 | Date: 5-03-2013, 13:20 | Comments (2) We also recommend reading:

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If you want to create a beautiful underwater world in your aquarium, you want to breed rare and exclusive breeds of fish, you should learn such a thing as the acidity of water.

Litmus test strips for measuring water

It is measured in chemical units Ph, for this purpose, a special test is used, the instrument or the acid-sensitive strips. If the value does not meet the norm per meter, it can threaten the health and even the life of fish and plants.

The acidity of the water in an aquarium is one of the important aspects that you need to constantly monitor and adjust. However, for fans of unpretentious fish (such as barbs or danios), you can not pay attention to it.

If you want to have an aquarium with a variety of colorful fish, then you have to learn how to determine the pH level.

The pH level is characterized by positive hydrogen ions. Neutral water contains the same amount of ions, in acidic water the pH is less than 7, and in alkaline water it is more than 7. If the amount is 7, then this medium is neutral.

To determine the pH level in your tank, you can use litmus papers and reagents that change color depending on the environment that prevails in the tank.

The acidity of the water in the aquarium can also be measured by electronic testers: they will help you regularly and easily measure the pH level in the water, and modern models can be connected to a computer. However, their main drawback is the high price and the need to constantly do the calibration, so there should always be a suitable solution for calibration.

If you see a deviation from the norm, then depending on the results you need to lower or increase the level of acidity in the aquarium.

In order to lower the pH level, you can use drinking water that is added to the water in the aquarium. You can also add sodium bicarbonate sludge instead use water from the tap, in which the alkaline level is significantly elevated.

There are many ways to lower the pH in an aquarium.

If the pH level needs to be increased, then you can use one of three methods. First, add sodium biphosphate.

Secondly, pour a small amount of peat into the aquarium water. Third, use a choice of hydrochloric, acetic, sulfuric or phosphoric acid.

Changing the level of acidity should be very careful; all means should be used in small quantities, otherwise there may be irreparable deterioration. However, if deviations from the norm do not exceed 2 units, then no action is needed.

If the pH level is normal, then everything is fine in the aquarium and the biological balance is not disturbed. As soon as you see the changes – even minor ones – immediately measure the acidity.

If there are deviations, then first of all try to improve the situation with the help of water changes.

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