Aquarium Dosing Calculator
Calculate how much aquarium treatment, fertiliser or supplement to add to your tank.
1. Your aquarium
Enter the actual volume of water in your aquarium. If you have substrate and décor, use your estimated water volume rather than the manufacturer's gross tank capacity.
litres (L)
2. Product dosing instructions
Enter the dosing rate shown on your product label. The calculator will scale it to your aquarium.
Manufacturer's recommended dose
L
ADD THIS MUCH TO YOUR AQUARIUM
6
mL
once per week
6 mL
PER DOSE
24 mL
APPROX. 30 DAYS
312 mL
APPROX. 1 YEAR
🧴 How long will your bottle last?
100 mL bottle
16.7 doses
250 mL bottle
41.7 doses
500 mL bottle
83.3 doses
1 L bottle
166.7 doses
Based on the manufacturer's dosing instructions,
add approximately 6 mL once per week.
Important:
Always follow the manufacturer's instructions and
maximum recommended dosage for the specific product.
This calculator only scales the dosing rate to your
aquarium volume. It does not determine whether a
particular treatment or supplement is appropriate
for your aquarium.