✅ Proper Method for Using Harra
1. Raise the water level in the pond by 1–2 feet and leave it for 7 days. Once the eggs of unwanted fish hatch, lower the Harra to the bottom. Drag the Harra repeatedly to release all trapped gas. If unwanted fish eggs are present, applying gas tablets followed by immediate Harra dragging will force the eggs out of the mud and destroy them. If there are too many unwanted fish or native tilapia, wait another 7 days and apply 300g to 500g of bleaching powder per decimal. The day after applying the bleach, drag the Harra repeatedly for 3 days to significantly reduce unwanted fish. Then, raise the water level to 5 feet.
2. Drag the Harra slowly across the entire pond after raising the water level.
3. It is best to use it every morning or evening.
4. It should be used at least 3–4 days a week during the farming period. Dragging the Harra and aerating the water for a few hours will generate plenty of natural food, reducing your feed costs.
5. Spend more time in areas with heavy mud or gas accumulation.
6. Pull slowly rather than jerking it suddenly.
7. Using it after rain provides better results.
8. Increase usage if there is a high density of fish.
9. Multiple Harras can be used simultaneously in the pond.
10. Wash with clean water and dry after use to ensure it lasts for 5 to 10 years.
🌟 Benefits of Harra
1. Removes toxic gases (ammonia, hydrogen sulfide) from the pond floor.
2. Increases water oxygen levels.
3. Reduces fish mortality rates.
4. Promotes faster fish growth.
5. Improves digestion.
6. Eliminates foul water odors.
7. Maintains natural water color.
8. Prevents mud from hardening.
9. Reduces disease risks.
10. Significantly lowers medication costs.
11. Reduces fish stress.
12. Keeps the pond environment natural.
13. Helps control algae.
14. Reduces harmful bacteria underwater.
15. Increases fish appetite.
16. Keeps water quality good for longer.
17. Reduces foam caused by gas accumulation.
18. Increases production and profits.
19. Suitable for all pond sizes.
20. Durable for 5–10 years with a single purchase.
🔴 Important Note: Drag the Harra the day before using any product in the pond and aerate the water thoroughly to ensure you get the full benefit of the medicine you purchased. Using the Harra often eliminates the need for expensive medication. Regular use keeps the pond gas-free, fish healthy, and farmers profitable.
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Location: Jashore, Monirampur, Kopalia Bazar. You can visit my office directly or order for courier delivery to any district in Bangladesh.