Generally, Sports Protective Products can be divided into helmet, shoulder protection, hand protection, elbow protection, wrist protection, waist protection, leg protection, knee protection, ankle protection, combined sports protective equipment, other sports protective equipment,
Sports Protective Products ,achieving portability, aesthetics, unity, very good joint support and muscle relaxation, in sports, can play a better protective role.
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How to adjust the pH of ponds
The main fish of the high-yield fishponds are the “four major fishesâ€, and the “four-masts fishes†have the pH-adaptation range of 7-8.5. Below 6.5, the metabolism of the pond fish will be reduced, impairing the growth, and being below 5 or higher. 10 The pond fish will soon die. In addition to the direct impact on fish life, pH has an adverse effect on the decomposition of organic matter in ponds, the photosynthesis of phytoplankton, and the growth and reproduction of feed organisms. Therefore, if the pH value is frequently checked and water quality is found to be acidic, quicklime is used to adjust it. The general regulation method is: In April-October, combined with disease prevention work, monthly splash of whole pond with lime water 1 time, each dosage of 20 kg per acre, can maintain a stable pH value.
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