1. Long-term do not change the water, not cleaning the filter too much humus.
2. The stocking density is too large.
3. The sudden change in weather, the air pressure is too low.
4. The plankton excessive and fish compete for oxygen with each other.
5. Water temperature sudden changes in temperature up to 5 degrees Celsius, the fish was a sudden can not stand the cold stimulus onset. Change the water, clear cylinder, fish, produce, trauma.
6. Food ration from time to time, qualitative, quantitative, positioning, resulting in malnutrition.
7. The over-saturation of oxygen in the water, tap water and immediately put the fish in the hot sun directly after irradiation, and water to produce bubbles.
8. Pesticide poisoning, flowerpot spraying, pest control, mosquito control, the flies drugs did not remove the fish tank, or not stamped, pesticides fall into the fish tank.
9. The lack of medication knowledge in fish disease during treatment with inappropriate medication.
10. Clean the filter cotton, rinse with water, and must not use detergent or soap immersion.
dear sir
i need to buy ,PURE PRO ,WATER LONIZER ,JA-503 .PLEASE
GIVE ME THE PRICE
RGDS
BRIAN