What color are nitrifying bacteria? Nitrifying bacteria are .

We buy this weekly addition of so-called nitrifying bacteria.

In fact, it is photosynthetic bacteria.

Photosynthetic bacteria Photosynthetic bacteria, commonly known as: B bacteria. Photosynthetic bacteria are microorganisms in water due to their photosynthetic pigments, including bacterial chlorophyll and carotenoids.

and so on, and the pale pink color, photosynthetic bacteria can use the hydrogen in the compound and carry out photosynthesis without producing oxygen under anaerobic and light conditions.

Photosynthetic bacteria can survive in a certain polluted environment and play an important role in purifying water quality. However, it will only play its role when the living environment and polluting substances conform to their physiological and ecological characteristics, otherwise it is difficult to obtain expectations. For example, in a dark-free or aerobic environment, it is difficult for photosynthetic bacteria to be effective.

If photosynthetic bacteria are present in the aquarium, it will be organic matter or hydrogen sulfide.

and other substances are absorbed and utilized, so that the oxygen-consuming heterogeneous microorganisms become weak due to lack of nutrients, thereby reducing the chance of toxic decomposition products, and at the same time, the water quality in the substrate can be purified, and promote the healthy growth of aquarium organisms. At present, the photosynthetic bacteria in the aquarium market are mainly photoenergetic heterogeneous Rhodospirilaceae, especially the species of Rhodopseudomonas. This photosynthetic bacterium can effectively purify water quality in different metabolic ways under different environmental conditions.

It should be noted that photosynthetic bacteria work best in the environment of water quality, so they are more suitable for use in seawater aquariums. So the photosynthetic bacteria only have a short-lived effect, because we don't have the ideal environment in the tank for them to live.

Unless we make an oxygen-free filtration area, there is also lighting.

Nitrifying bacteria aqueous agents are generally pale yellow in color! If you haven't used the existing sediment, that's not great! Generally, the better ones don't stink.

The nitrifying bacteria are yellowish in color, and the nitrifying bacteria preparations made are usually white or yellowish in color. If it is black, it may be due to the death of nitrifying bacteria, or the reaction of hydrogen sulfide produced by sulfate-reducing bacteria contained in the microbial agent with iron ions in water to form black ferrous sulfide. Some bacterial agents with red or light red fluids are usually not nitrifying bacteria, but photosynthetic bacteria or other agents.

a.Chemoautotrophic bacteria, ammonia oxidation to produce nitrite for energy.

b.Chemoautotrophic bacteria, oxidizing nitrous acid to generate nitric acid to obtain energy.

c.Chemoheterotrophic bacteria Zheng Septic with nitrate as the final acceptor.

d.Chemoheterotrophic bacteria with nitrite as the final acceptor.

Correct Answer: Chemoautotrophic bacteria, oxidizing nitrous acid to produce nitric acid for energy.

1 Pinyin 2 English references.

3 annotation xiāo huà xì jūn

nitrifying bacteria

Nitrifying bacteria Aerobic ammonia oxide is a group of soil bacteria that oxidizes nitrite (nitrite bacteria) and nitrous oxide is nitric acid (nitric acid bacteria). They are always engaged in a life of fighting and quarrelling ecology; In terms of nutrition, it is an inorganic trophic bacteria that chemically synthesize inorganic oxidation. Both are gram-negative bacteria.

Energy assimilation of CO2 (CO2 H2O 1 6C6H12O18, G118 kcal) is obtained by the following reactions:

In the cells of nitrifying bacteria, some have a well-developed layered structure such as photosynthetic bacteria sampling, in which there is a cytochrome electron transport system that oxidizes inorganic substances locally, and conjugates with it to produce chemical energy represented by ATP; A portion of this is consumed by the formation of a reverse flow of electrons from the cytochrome system, which is the reducing capacity necessary for the fixation and assimilation of carbon dioxide (NADH or NADPH), a mechanism that is closely controlled by the inorganic vegetative life of the cell. Organisms that oxidize organic matter cannot be used even if they are supplied with organic matter as an energy source from the outside, indicating that it is an extreme organism that lives aerobically. The strict conditions above PH8 are particularly suitable, and it has strict specificity for NH4 and NO2.

The nitrification rate of the soil is pre-milligram of ammonium nitrogen per gram of soil per day, which is equivalent to 1 4-1 2 tonnes of ammonium sulphate per hectare per day. In particular, the properties of nitrifying bacteria that attach to the surface of soil particles are emphasized. Nitrogen metabolism has been vigorously studied in soil bacterial flora.

1.Nitrifying bacteria do not break down fish waste.

2.Nitrifying bacteria cannot decompose hydrogen sulfide (H2S) in water, but are poisoned and killed by hydrogen sulfide in water.

3.Nitrifying bacteria have no taste, and even after death, they only have a faint smell.

4.Nitrifying bacteria are unable to directly oxidize ammonia (NH3) to nitrate (NO3).

5.Nitrifying bacteria is just a general term, which mainly includes nitrite bacteria and nitric acid bacteria; Nitrite bacteria can oxidize ammonia (NH3) to nitrite (NO2), while nitrate bacteria can oxidize nitrite to nitrate (NO3).

6.Nitrifying bacteria oxidize ammonia (NH3) to nitrite (NO2) and then nitrite (NO2) to nitrate (NO3).

7.Oxygen is required for the growth of nitrifying bacteria.

8.Carbon dioxide is not only harmless to nitrifying bacteria, but nitrifying bacteria need carbon dioxide to multiply and survive.

9.Nitrifying bacteria are ubiquitous.

10.The growth of nitrifying bacteria in the fish tank is slow, and it usually takes a month or more to build a nitrification system by self-generation.

11.Nitrifying bacteria do not need light to grow, but have the phenomenon of growing in the dark.

12.Nitrifying bacteria do not improve the problem of turbidity in water quality, and it has nothing to do with it.

13.Nitrifying bacteria are very difficult to preserve, and the vast majority of nitrifying bacteria sold on the market are mixed, so we still try to buy big brands when buying.

14.Nitrifying bacteria play a greater role in bare tanks than in grass tanks, because most aquatic plants can replace nitrifying bacteria.

What are the causes of nitrifying bacteria?

It is a lack of nitrifying bacteria Insufficient nitrifying bacteria, generally only 1When opening the cylinder 2or when there is a problem with the nitrification system 3When there is a sudden overabundance of fish or the density of fish exceeds the capacity of the filtration system.

When opening the cylinder, especially when the compound multi-bacteria is opened, the dosage will be mixed with water, and it is okay to add a small amount many times.

When nitrification is a problem, if it is pure nitrifying bacteria, it is fine, if some of the names called "nitrifying bacteria" on the market are actually "nitrifying bacteria nutrients, or + water purification agents", it will only exacerbate the deterioration of water quality.

When there are suddenly too many fish, or the density of fish exceeds the capacity of the filtration system, it is necessary to see if the maximum capacity of the tank filtration force is exceeded.

If it is exceeded, the only way to reduce the fish or change the tank and increase the filtration capacity.

Of course, the sufficient amount of biochemical filter media and suitable filter tanks, or other suitable living environments is also a major problem.

Because as long as there is a suitable environment, nitrifying bacteria can be produced naturally.

If the hardware of your nitrification system is insufficient. Constantly adding nitrifying bacteria, there are still no suitable places to live with more nitrifying bacteria, and you only temporarily purify the water quality, which does not solve the fundamental problem, and affects the stability of water quality.

If your nitrification system is sufficient, what are the benefits for the water quality and your wallet?

I have bought concentrated nitrifying bacteria liquid (containing denitrifying bacteria) in the United States, which is colorless and odorless.

Last year, I brought two kinds of domestically bought ones to the United States for testing, and there were basically no nitrifying bacteria.

Yours is colored and flavorful, hanging!