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Saydeks for aquarium instruction

maintenance, care, compatibility

Perhaps there is no aquarist who would never face the problem of algae.

To combat them use a variety of disinfectants: manganese, chlorine, peroxide. However, the most effective and safe way to get rid of lower plants is sidex.

First of all, it should be noted that the effect of special preparations based on glutaraldehyde is selective. Saydeksy that do not cause any harm to higher plants, act at the cellular level with algae tissues.

Consequently, this disinfectant can be successfully used both for the destruction of algal plaque on the walls of the aquarium, and the “beard” on the leaves of ornamental aquatic plants. Depending on the type of Sidex, the method of application (daily dose), harmful algae are completely destroyed 10–15 days after the start of use.

How does it affect the biosystem? As a result of numerous experiments, it was found that sidedex does not adversely affect the state of the aquatic environment.

Or renders, but indirectly.

  • Some negative effects on the chemical and biological parameters of aquarium water are exerted by the mass of the dead as a result of interaction with algae sidedex.
  • The concentration of carbon dioxide increases, which causes rapid growth of higher vegetation.
  • In the first days after the start of the use of a disinfectant, the researchers noted a certain increase in the concentration of nitrites and nitrates.
  • However, all these undesirable side effects quickly passed, and the ecological balance of the aquarium ecosystem was restored.

Currently, companies (mostly foreign) produce several types of saidex, which can be bought in specialized stores without any problems.

These drugs are conventionally divided into soft (gradual action) and strong (quick action). However, the degree of impact on algae often depends on the dose of components of Sidex introduced into aquarium water.

Perhaps the most common means of effective prevention and control of lower plants are the preparations of the German company TETRA, which are available in the form of tablets, ready to use.

For example, a soft, gradual action is Tetra Algetten, which is advisable to use in small-capacity aquariums. Disinfectants, pressed into tablets, when dissolved in aquarium water dissolve gradually, they are often used more to prevent the growth of algae than to destroy them.

If you want the rapid destruction of blue-green algae, you can purchase the tablet preparation Tetra AlgoStop depot, which is suitable for all types of aquarium dwellers.

As for the American drug Cidex Activated Glutaraldehyde mentioned at the very beginning, it remains to this day to be perhaps the most effective means of combating vegetation species undesirable in an aquarium. Without exerting a harmful effect on higher plants and ornamental fish, already on the 15th day of gradual introduction into the aquarium water, it completely destroys not only blue-green algae, but also red ones, as well as the so-called black beard.

An interesting fact: in the course of numerous studies and experiments, scientists found out that the effect of saidex is more destructive for the simplest compounds of harmful microflora. That is, the lower the degree of organization of harmful aquarium organisms, the stronger the impact of the disinfectant drug.

In principle, this applies to all types of saidex, including those that do not contain glutaraldehyde.

Thus, the term “Sidex” now refers to all existing chemical means intended for the destruction of plant parasites and for the prevention of their possible appearance in aquariums.

No matter what kind of saidex, its application will be the most effective, and most importantly – harmless for the “useful” inhabitants of aquariums, if you strictly adhere to the requirements of the instructions. They are attached to each product in each package.

It is only required to correctly calculate the daily dose of making funds, taking into account the amount of aquarium water.

Video review of the use of sidex in the aquarium:

Instructions on the use of Sidex for aquarium

Only 12-15 ml of this substance, diluted in 100 liters of liquid, allows you to forget about the problem with algae for about a month. The death of shrimp after the use of this substance, with the exception of isolated cases described on the Internet, was not observed.

If Saydeks used correctly, then everything will be normal, its dosage in the aquarium should not exceed 1.5-2 ml per 10 liters of fluid.

Saydeks: general characteristics and detailed instructions for use. Saydeks for aquarium

Sidex is a chemical compound whose main component is glutaraldehyde. It is a yellow liquid with a characteristic odor.

It will tell you how to properly use Cydex, instructions for use: sterilization of flexible and rigid endoscopes, surgical instruments, as well as the disinfection of premises involves the use of the drug. On the market of disinfectants, there are two types of product – Saydeks and Saydeks OPA.

Instructions for use of the first option involves the use of powder activator. It is added to the liquid before use. While Saydeks OPA is a liquid with the active ingredient orthophthalic aldehyde.

But most often used liquid with activator.

Also, means Saydeks disinfect the premises where pets and livestock are kept. In agriculture, it is widely used as a drug to combat viral diseases (anthrax, African plague, foot and mouth disease, brucellosis, and others). All this information contains instructions for use. Saydeks has a persistent effect on spores, bacteria and viruses.

In aquarist, the agent is used without the addition of an activator, that is, only a liquid without impurities. Prepare a working solution of no more than 2-3% strength, as in large doses, Sidex is toxic, and in low concentration does not adversely affect the inhabitants and the environment in the aquarium.

In water, the agent is susceptible to oxidation, forms glutaric acid and breaks down into two components – water and carbon dioxide.

The result of Sidex’s action is water disinfection. That is, the drug, getting into the environment of the aquarium, has a detrimental effect on many harmful algae, which eventually die and decompose.

It will tell you how to use Saydeks, instructions for use. For an aquarium as a system, the drug is harmless and affects only certain types of algae.

Sideks: to be or not to be, that is the question?

Beginners aquarists, yes, and experienced too, often wonder about the use of Sidex in the aquarium! Well, let’s discuss this topic.

To understand it completely, as an example, I will tell you a story that I once heard from a beginner in the aquarium world, Hamlet Vilenovich.

Hamlet Vilenovich was a novice aquarist, most recently, about two months ago, he acquired an aquarium. Like many newcomers, Hamlet was tormented in his thoughts … to be or not to be … weekly changing one hundred percent of the aquarium water … boiling the ground … transplanting small fish here … eventually one fine day, which is not surprising, dissonance began in the aquarium.

The fish began to ache, the water began to smell like a swamp, and the aquarium itself was covered with green algae.

Clutching his head, Hamlet Vilenovich walked from side to side and exclaimed: “Poor Yorick! Poor Yorick! ”, So he called the shard, which he installed in his aquarium.

It was scary to watch him! Yorick was all covered with greenery, absolutely all! What to do?

Hamlet asked himself puzzled! We must act, but how?

Without thinking twice, our hero began to study the Internet in search of an answer to his questions. As a result, carefully studied the materials: bioblanas in the aquarium, nitrites and nitrates in the aquarium, the brochure “Nitrogen cycle”, Hamlet understood his mistake – he did everything wrong! It was not necessary to change the water in such quantities, it was not necessary to boil the soil, thus it prevented the beneficial bacteria from adjusting the biological balance in the aquarium.

Fatal error was realized by him! But how to fix it?

Restart the aquarium? Again, all namyvayut?

How to get rid of algae? How to bring beloved Yorick in order?

Once again, Hamlet plunged headlong into the Internet. Found and read an article about algae in an aquarium, from which I realized that first of all I need an integrated approach to solving this problem.

Then he began to study the range of drugs from algae, which could help in his neglected case. There were many of them, but almost every aquarium resource sounded the name: “Sidex”.

Someone admired this drug, someone said: “This is a terrible poison that will destroy all the plants in the aquarium …”. Hamlet was confused – to pour or not to pour, to buy or not to buy saydeks?

It was very scary to use an incomprehensible drug. Moreover, in his aquarium only, only began to take root vallisneria and cryptocorynes.

For the third time, Hamlet Vilenovich climbed the Internet and began to study information about the web. And that’s what he learned.

Saydeks is the commercial, patented name of the drug, based on glutaraldehyde.

Hamlet also read that glutaraldehyde is a clear liquid with a characteristic odor. The drug belongs to the group of aldehydes and contains an active ingredient of at least 25%. Glutaric aldehyde has a bactericidal, sporicidal and virucidal action.

Aqueous solutions of glutaraldehyde are used for wet disinfection of livestock and poultry farms, cars after transportation of animals, raw materials and animal products, work clothes and other objects for preventive purposes, as well as for forced disinfection during colibacteriosis, paratyphos of young animals, aspergillosis, pig masks, pasteure, and other objects, aspergillosis, pigs, paste, eyelet, aspergillosis; , brucellosis, tuberculosis, foot and mouth disease, African swine fever, anthrax and trichophytosis.

Hamlet, puzzled, why use such a “poison” in an aquarium? It turns out that saydex also has algicidal properties (lat. Alga – sea grass, seaweed and caedo – I kill), i.e. algaecides are all chemicals from the group of herbicides and biocides for the destruction of algae.

REFERENCE: Now, in the people, the term SIDEKS denotes all chemical and chemical-biological preparations against algae. But to be precise, the word “saidex” originates from the name of the American chemical means Cidex Activated Glutaraldehyde.

This drug was developed by Johnson Johnson for the prevention and control of harmful lower plants (algae) in domestic ponds.

Now it became clear to Hamlet Vilenovich why everyone is so cautious about this drug and why many complain about it. Still, I just went too far with the preparation and everything in the aquarium died out. Hamlet continued to read the aquarium forums, and again, once again became convinced that sidex was a dangerous thing, not only for the aquarium, but also for people.

Someone even wrote that after regular use of saydex in the home aquarium, the family began to have vertigo and allergies. Also, Hamlet met the opinion that different manufacturers produce sidex based on glutaraldehyde, but different manufacturers have differently modified molecule of this substance.

That is, it is not at all clear what ultimately you use!

Given the knowledge gained, Hamlet became thoughtful. To organize his thoughts, he took a pen and began to write letters on a piece of paper – it was a plan of complex actions:

1. Sick the fish in a quarantine tank and begin treatment.

2. If possible, mechanically clean the greened aquarium, Yorick and plants.

3. After replacing part of the water to fresh.

4. Rinse the filter and enhance aeration.

5. Apply a preparation of algae … uh … but what?

Gamlen Vilenovich decided for himself that it was better not to take an incomprehensible Sidex, an incomprehensible brand, with an incomprehensible formula and unknown additives. It is necessary to find such a preparation for algae: the composition of which is understandable, so that the firm is solid, so that the instruction is clear and understandable … even for a beginner.

After a long search, Hamlet chose to algae preparations from the company Tetra.

He reasoned like this, Tetra is a well-known company, popular, and besides, German. Their preparations have been repeatedly tested in European laboratories.

The preparations have clear instructions, there is a description of the composition and amount of the active substance – monolinuron … so stop, Hamlet thought, we must fully understand, opened Wiki and found out that monolinuron (C9HelevenCln2O2) – it is also an algicide, but unlike others it is of low toxicity. The final decision in favor of Tetra was made when Hamlet studied the tables:

As can be seen from the table and graphics, Tetra has developed a line of drugs from algae “for all occasions” – some drugs act gently and briefly, while others are applied “in neglected cases”.

Hamlet spent all the preparatory activities, assessed the magnitude of the disaster in his aquarium and purchased the drug Tetra algetten – which gently fights and prevents the appearance of all types of algae. Hamlet thought so, let me better take a softer drug than by chance overdoing the dosage, as they say it is better to undershot, than to pour. If the algae will not go away, I will just increase the dosage a little more.

Or take a stronger drug.

Before introducing the drug, Hamlet Vilenovich read the instructions again and proceeded to action. Fixing the pill, as was said in the instructions, he moved away from the aquarium … sat down for another minute and went to do his usual business.

The time has passed and about the miracle! Green Yorick began to acquire a pristine appearance, and the aquarium becomes cleaner and healthier.

Hamlet’s joy knew no bounds! Finally, the problem was solved.

After the procedure, our hero carried out a thorough cleaning – if possible, removed dead algae, prisifil soil, changed part of the water and most importantly, he began to strengthen the biological balance in the aquarium … he no longer wanted repetitions, he decided for himself that he never again will bring the aquarium to a depressing state!

This is the story that happened to Hamlet, since then, many years have passed. With a smile on his face, he told me, this case, wisdom and experience sparkled in his eyes.


One may argue about the effectiveness of the use of a drug from algae. With this simple story, I would like to emphasize the most important thought – no pill or drug will be a panacea if the aquarist himself does not take part in solving the problem. Otherwise, we can say that the best remedy for algae is the efforts of the person himself, it is an attentive attitude to his aquarium and hydrobionts.

It seems to me that this is the key to success.

Concentrate not on algae, but on the reason for their appearance – this is the most important. We need to understand why this happened, because of what.

We need to deal with the causes, not the effect! Eliminating the cause, you will get rid of the consequences – from algae!

The causes of algal outbreaks are different and individual. This may be the wrong, poor quality filtering and aeration, the wrong daylight mode, wrong water changes, care, excess organic matter in the water, etc.

Solving the problem with algae, it is recommended to level all negative factors, at least test the water for ammonia decomposition products: NH4, NO2, NO3 and, if possible, reduce their concentration, enhance filtration and aeration, reduce daylight hours, and take other measures based on the situation.

Video about algae in the aquarium:

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