A little less guesswork.
Easy Dechlorinator calculator
Aquarium Co-Op Easy Dechlorinator — current measuring-cap bottle
Read the product guide and worked examples ↓
Clear amounts. Visible assumptions.
Your calculation, explained
Choose a product and enter the water you’re actually dosing.
- Check the exact product and formulation.
- Use measured water, or make an explicit estimate.
- Review the amount, source and any schedule.
Product guide · edited 28 October 2026
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How much Easy Dechlorinator treats new water?
The current measuring-cap reference is 1 mL per 10 US gallons. Enter the tap-water batch being prepared, including tap water used for a top-up.
Worked examples
These illustrations use 100 L of measured water, without a decor deduction. Choose the matching stage or formulation above for your own water volume. They do not select a treatment or establish livestock suitability.
When preparing new tap water
| Stage | Amount or action for 100 L |
|---|---|
| When preparing new tap water | 2.64 mL |
Example only. Your calculation above uses your own inputs. Small amounts and powder fractions still need equipment that can measure them reliably.
Before you measure
This tool uses mL; do not infer a universal drop size or multiply the normal result for an emergency. Aquarium Co-Op recommends water changes to remove excess nitrogen compounds rather than relying on conditioner.
Product-specific checks from the calculation record
- Enter the tap water being treated. This is the normal rate; high-chlorine adjustments are not selected automatically.
- Maintain aeration. The current directions use mL, with a separate two-drops-per-US-gallon option for small tanks; no pump size is assumed.
Do I enter tank capacity for a small top-up?
For a separately prepared tap-water batch, enter that batch volume. Evaporation top-ups and full water changes are different jobs.
Sources and next steps
Aquarium Co-Op manufacturer directions →
Manufacturer page consulted 28 October 2026. Match the exact bottle and leaflet; editorial review does not establish diagnosis or compatibility.