1. What Does Quarantine Mean?

• It is the process of keeping new fish in a separate tank for a certain period before adding them to the main aquarium.

• This period usually lasts 10–14 days.

• During observation, the fish’s overall condition, appetite, feces, swimming behavior, and physical appearance are monitored.

1. Why Is Quarantine Necessary?

• New fish experience stress during transportation, which weakens their immune system.

• Stressed fish are more susceptible to illness and may activate diseases they already carry.

• It prevents parasites, bacteria, and viral diseases from spreading to the main tank.

• It protects the health of existing fish and maintains water quality.

1. Possible Diseases Detectable Through Quarantine

• White spot disease (Ich)

• External and internal parasites

• Fungal infections

• Gill flukes

• Bacterial diseases (such as fin rot)

1. What Should a Quarantine Tank Be Like?

• An aquarium of at least 10–20 liters is sufficient (depending on the fish species).

• Basic equipment such as a heater and sponge filter should be included.

• The tank should be simple, with little or no decoration to make observation easier.

• If necessary, salt baths or preventive treatments can be applied in this tank.

1. Points to Consider During Quarantine

• Daily observation should be made, and the fish’s behavior should be noted.

• During quarantine, contact with the main tank (water, equipment, hands, etc.) should be prevented.

• If the fish appears healthy at the end of quarantine, it can be adapted to the main aquarium.

• If there are any suspicious signs, the quarantine period should be extended or treatment should begin.

Conclusion
Quarantine is a critical precaution not only for sick fish but also for new fish that appear healthy. This short-term isolation practice plays an important role in protecting the health of all aquarium inhabitants. This seemingly simple step reduces the risk of disease in the long run, lowers treatment costs, and improves the overall quality of life for your fish.