Can the water used to wash fish be used to water flowers directly? Can the water used to wash fish be used to water flowers directly?

Use fish washing water to water the flowers directly

The water used to wash fish cannot be used to water the flowers directly, because the fertilizer content in the water is relatively high. If it is used to water the flowers without fermentation, the water will ferment directly in the potting soil. In this process, more heat will be generated, causing the temperature to be too high, resulting in root burns of the flowers.

The pros and cons of using fish water to water flowers

Fish washing water contains a large amount of nutrients, including phosphorus fertilizer. Watering flowers with fish washing water can supplement the nutrients needed for flower growth, promote the growth of flower roots, and make the soil full of beneficial bacteria.

However, fish washing water will produce a strong odor after fermentation. If you are growing flowers indoors, you should not use fish washing water to water them, as it will pollute the surrounding air environment.

How to water flowers with fish washing water

First, put the fish washing water into a plastic bottle, and then place the plastic bottle with fish washing water in a well-lit place for fermentation. Then pour in some orange peels to prevent odor during the fermentation process, and then cover it with a lid.

It is recommended to open the bottle every day to let the water breathe. The fermentation time is about 30 days. When the fish washing water turns black and has no odor, you can use the fermented fish washing water to water the flowers.