Question

oil emulsion should be done of fish pond​

Answer 1

Answer:

For making soap-oil emulsion, the soap is mixed with oil and gently heated for some time with vigorous stirring. These emulsions are applied by spraying over the pond surface about 12–24 hours prior to stocking of spawn.

Explanation:

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Answer 2

Answer:

Oil emulsion is applied on the surface of the fish pond to eradicate the predatory aquatic insects.

Explanation:

Many aquatic insects prey on fish hatchlings and fry and compete with them for food. Beetles, bugs, and dragonfly nymphs are common insect predators.

Proper nursery pond preparation for spawn stocking also aims for absolute eradication of such predatory insects. The primary procedure is to deposit a thin oily film to the pond surface, which clogs the aquatic insects' breathing tubes. The spawn and the creatures that feed the fish are unaffected.

Except for the soap-oil emulsion, other mixes or emulsions are straightforward to make. To make a soap-oil emulsion, combine the soap with the oil and gently heat for a few minutes while vigorously swirling. These emulsions are sprayed over the pond surface around 12–24 hours before spawn is stocked.