Fish Quarantine Calculator

Quarantine tank size and medication dosing for new fish.

Number of Fish

Average Fish Size (inches)

Treatment Protocol

Quarantine Duration (days)

Tab to move between fields

Recommended QT Tank (gallons)

Minimum QT Tank (gallons)10

Duration (days)30

Total Water Changes10

Total Water Used (gallons)30

Medication Doses0

Heater (watts)75

Sponge Filter (GPH)60

Treatment LabelObservation Only

How to Use This Calculator

What each input means

Number of Fish: How many fish you are quarantining at once.
Average Fish Size (inches): Average adult length of the fish being quarantined.
Treatment Protocol: 1 = Observation only, 2 = Parasite treatment, 3 = Bacterial treatment, 4 = Full prophylactic trio.
Quarantine Duration (days): Length of quarantine period. 2-4 weeks is standard; 6 weeks for sensitive fish.

Recommended QT Tank (gallons): Suggested quarantine tank size for comfort and water stability.
Minimum QT Tank (gallons): Absolute minimum quarantine tank size.
Duration (days): Your selected quarantine period.
Total Water Changes: Number of water changes during the quarantine period.
Total Water Used (gallons): Total new water needed for all water changes.
Medication Doses: Estimated number of medication doses for the treatment protocol.
Heater (watts): Recommended heater wattage for the quarantine tank.
Sponge Filter (GPH): Recommended sponge filter flow rate.

Identify Input Parameters
4 parameters
Number of Fish = 3, Average Fish Size (inches) = 3, Treatment Protocol = 1, Quarantine Duration (days) = 30 = 4 input(s) provided
Calculate Recommended QT Tank
Recommended QT Tank = max(15, gallonsByFish * 1.5)
15 = 15
Calculate Minimum QT Tank
Minimum QT Tank = max(10, gallonsByFish)
10 = 10
Calculate Duration
Duration = 30
30 = 30