Zhengzhou Guanao Instrument Co., Ltd
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Aquaculture (fish pond) water quality detector
The water quality of aquaculture is crucial. It is said that fish farming starts with raising water. There are many factors that affect the water qual
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  • What are the water quality testing items for aquaculture (fish ponds)?


    The water quality of aquaculture is crucial. It is said that fish farming starts with raising water. There are many factors that affect the water quality of fish ponds, and these are the items we need to test: PH、 Dissolved oxygen, chemical oxygen demand, sulfate, ammonia nitrogen, heavy metals, nitrite, total coliform bacteria, suspended matter, temperature, phosphate, etc. In addition, there are some detection items that can be achieved without the use of tools, such as color, odor, taste, and floating substances. Fish, shrimp, shellfish, and algae must not have any color, odor, or peculiar smell, and there must be no obvious oil film or floating foam on the water surface.


    Advantages of water quality testing equipment for fish ponds (aquaculture) produced by Guanao brand manufacturers:


    1. The water quality analysis instrument of Guan'ao Fish Pond adopts the latest rapid detection working principle such as spectrophotometry, with fast detection speed. After taking the water sample and adding the finished reagent, the measurement data can be obtained within a few minutes.


    2. LCD backlit display screen, which can clearly display the measured time, date, measurement value, and measurement unit.


    3. The water quality monitoring instrument for Guan'ao fish pond is equipped with a thermal printer, which can print all data with one click for easy recording.


    4. Automatically switch light sources, one device can simultaneously detect multiple items.


    5. Small repeatability error, ≤ ± 2%.


    6. The Guanao brand aquaculture water quality detector is equipped with a high-power battery, which is easy to carry and can work continuously for 8 hours on standby.


    7. The instrument has a full range calibration curve stored in its memory, with power-off protection, and calibration data will not be lost.


    8. Portable box design, easy to carry, and can also work in the wild.



    Scope of application of aquaculture water quality testing instruments and equipment:


    Aquaculture water, aquaculture wastewater, aquaculture effluent, shrimp pond water, eel aquaculture water, crab pond aquaculture water, freshwater aquaculture water, seawater aquaculture water, etc.


  • Working principle and technical specifications of water quality testing projects for fish ponds


    Serial Number

    Testing items

    Fishery Water Quality StandardsGB 11607-89》Limit requirements

    GA-YYCPortable swimming pool water quality detector testing method

    1

    dissolved oxygen

    continuous24hIn the middle,16hThe above must be greater than5At any other time, it shall not be lower than3At any time during the freezing period in the habitats of salmonid fish, the temperature shall not be lower than4

    spectrophotometry

    2

    PH

    freshwater6.5-8.5, seawater7.0-8.5

    Glass electrode method

    3

    Biochemical Oxygen Demand BOD5 (20 ℃)

    not more than5The freezing period shall not exceed3

    spectrophotometry

    4

    sulfate

    not more than0.1mg/L

    spectrophotometry

    5

    Ammonia nitrogen

    not more than0.02mg/L

    spectrophotometry

    6

    nitrite

    not more than0.2mg/L

    spectrophotometry

    7

    Suspended Matter

    The artificially increased amount shall not exceed10Moreover, once suspended matter settles at the bottom, it must not have harmful effects on fish, shrimp, and shellfish

    Scattering method

    8

    Total coliform microbiota

    not more than5000individual/LThe water quality for shellfish farming shall not exceed500individual/L

    Membrane Filter Method

    9

    phosphate

    not more than0.05mg/L

    spectrophotometry

    10

    copper

    not more than0.01mg/L

    spectrophotometry

    11

    zinc

    not more than0.1mg/L

    spectrophotometry

    12

    chromium

    not more than0.1mg/L

    spectrophotometry

    13

    nickel

    not more than0.05mg/L

    spectrophotometry

    14

    temperature

    Different types of aquatic products have different temperature requirements

    thermometer

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