The acclimation process for fish typically takes between 15 minutes to 1 hour, depending on the method used and the fish species' sensitivity.
Recommended Acclimation Time and Process
- General Acclimation Duration: Most sources agree that acclimating fish should take about 15 to 60 minutes to reduce stress and allow the fish to adjust to the new water temperature, pH, and chemistry
- Step-by-Step Acclimation:
- Float the sealed bag containing the fish in the aquarium or pond for about 5 to 15 minutes to equalize temperature
2. Gradually add small amounts of tank or pond water into the bag every 5 to 10 minutes to slowly adjust the fish to new water chemistry
3. Continue this process for at least 15 minutes, preferably up to an hour, depending on how stressed the fish appear
4. Once acclimated, gently release the fish into the tank or pond
- Drip Acclimation: For fish sensitive to water parameter differences (e.g., pH, hardness), a slower drip acclimation over 1 to 2 hours is recommended to minimize shock
- Additional Tips:
- Keep the fish bag out of direct sunlight during transport and acclimation
* Dim or turn off aquarium lights during acclimation to reduce fish stress
* Feed existing fish before introducing new ones to reduce aggression
* Avoid rushing the process, especially if there is a significant difference in water parameters between the source and destination
In summary, a careful acclimation process lasting from 15 minutes up to an hour is ideal, with slower drip acclimation used when water conditions differ significantly. This helps ensure the fish adjust safely and reduces stress and mortality risk
