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Dosing Calculator
Calculate medication and fertilizer doses for your aquarium
ml, drops, or grams
⚠️ Important Safety Information
- •Always read product instructions carefully before dosing
- •Double-check your calculations - overdosing can harm or kill fish
- •Use actual water volume, not tank size (account for substrate, decorations)
- •Remove activated carbon from filter before medicating
- •Consider sensitive species (scaleless fish, invertebrates) - may need reduced doses
- •This calculator is a tool only - always defer to product instructions and professional advice
Common Dosing Examples
Water Conditioner (Dechlorinator)
Typical: 1-2 drops per gallon or 1ml per 10 litres
Use every water change to remove chlorine/chloramine
Aquarium Salt
Typical: 1 tablespoon (15ml) per 5 gallons (19L)
For treating ich, fungus, or stress relief (not for all species)
Liquid Fertilizer (Plants)
Typical: 1-2ml per 50 litres weekly
Adjust based on plant density and growth rate
Ich Treatment
Typical: 1ml per 10 gallons (varies by product)
Follow exact instructions - usually daily treatment for 3-5 days
Dosing Best Practices
- ✓Measure precisely: Use syringes or pipettes for accuracy
- ✓Dilute first: Mix medication in a cup of tank water before adding
- ✓Add near filter outlet: Ensures even distribution
- ✓Keep records: Track what you dose and when
- ✓Start low: With new products, consider starting at 50-75% dose