Fertilization in fish ponds primarily supports the growth of natural food sources such as plankton, epiphytic algae, and zoobenthos. When fertilized, microorganisms multiply, organic matter increases, and this creates a rich food environment for fish like tilapia and carp. Organic fertilizers can also be directly consumed by certain species, such as tilapia and mussels. In spring, when water temperatures are still low and oxygen levels are high, proper application of organic fertilizers not only saves costs but also improves pond productivity.
First, it is essential to fully ferment organic fertilizers before applying them. Fresh manure or livestock waste must be properly composted to reduce oxygen consumption in the water and make nutrients more available to phytoplankton. Fermentation also helps eliminate harmful pathogens that could negatively affect fish health.
Second, the principle of "less, even, and frequent" should guide fertilization. This means applying small amounts—between 30 to 100 kilograms per acre—each time. The fertilizer should be spread evenly across the pond to maintain a yellow-brown or oil-green color without an oily sheen. Water transparency should stay between 20 and 30 cm. If the water becomes too clear (over 30 cm), it’s time to fertilize again.
Third, the amount of fertilizer used should depend on the type of fish being raised. If the pond is already feeding fish with commercial feed, less fertilizer is needed to keep the water slightly turbid, around 30 to 40 cm. As temperatures rise, the pond becomes more nutrient-rich. For high-yield systems, such as those raising large quantities of tilapia or grass carp, it's best to avoid fertilizing in spring to prevent overloading the system.
Fourth, fertilization should be done on sunny mornings. Avoid cloudy or rainy days, as phytoplankton relies on sunlight for growth. Fertilizing in the early morning on a sunny day allows the nutrients to be absorbed quickly, promoting microbial growth while minimizing negative impacts on water quality.
Finally, regularly changing the pond water is crucial to maintaining a healthy environment. Excess organic waste and poor plankton composition can lower oxygen levels and harm fish growth. By replacing some of the water regularly, you ensure the pond remains "fat, live, tender, and cool," supporting a balanced and productive aquatic ecosystem.
Lithium Fluoride CAS No.7789-24-4
Lithium Fluoride Basic Information
Product Name: Lithium fluoride
CAS: 7789-24-4
MF: FLi
MW: 25.94
EINECS: 232-152-0
Mol File: 7789-24-4.mol
Lithium Fluoride Chemical Properties
Melting point: 845 °C(lit.)
Boiling point: 1681 °C
Density: 2.64 g/mL at 25 °C(lit.)
Fp: 1680°C
Storage temp. :Store at +5°C to +30°C.
Solubility: Soluble in 0.29 g/100 mL (20°C) and hydrogen fluoride. Insoluble in alcohol.
Form: random crystals
Color: White to off-white
Specific Gravity: 2.635
PH: 6.0-8.5 (25℃, 0.01M in H2O)
Water Solubility: 0.29 g/100 mL (20 ºC)
Sensitive: Hygroscopic
Doped Yttrium Lithium Fluoride,Gadolinium Lithium Fluoride,Ka Of Lithium Fluoride,Lif Lithium Fluoride
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