Dosing Calculator | Aquarium Medication & Fertilizer Dosage Tool

Dosing Calculator

Calculate precise medication and fertilizer dosages for your aquarium. Input tank volume and product concentration to get accurate dosing recommendations.

Simple Calculator
Advanced Calculator

medication Simple Dosing Calculation

Please enter a valid tank volume
per
Please enter valid concentration values

science Advanced Dosing Calculation

cm
cm
cm
Please enter valid dimensions
liters

biotech Recommended Dose

0
drops needed
Formula: Dose = (Tank Volume / Concentration Volume) × Concentration Amount

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Common Dosing Examples

Medication: 1 drop per 10 liters
Common for many aquarium medications
Fertilizer: 5 mL per 100 liters
Typical for liquid aquarium fertilizers
Water Conditioner: 1 tsp per 200 liters
Common for dechlorinating tap water
Salt: 1 tbsp per 20 liters
For therapeutic salt treatments

Dosing Best Practices

  • Always measure accurately – use a syringe for small volumes.
  • For medications, remove chemical filtration (carbon) during treatment.
  • Dose fertilizers based on plant load and lighting intensity.
  • When in doubt, start with a lower dose and observe.
  • Keep a dosing schedule to maintain consistency.
  • For sensitive species, consider dividing the dose over several hours.
Tip: For critical medications, always consult with a veterinarian or aquatic specialist.

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