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Homeโ€บCalculators
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Reef calculators

Dosing, alkalinity, salinity, volume, and water changes - with safe, gradual plans.

โš  Use at your own risk. These calculators are estimates to help you plan - always run your own numbers and follow your product's instructions. Nothing in this hobby should be changed quickly. West Coast Reefers is not responsible for overdosing, livestock loss, or any damage to your tank.

Use net water, not tank size.

Dose gradually
2.84 g / day
for 3 days ยท about 0.5 dKH/day
Total needed: 8.5 g spread over 3 days.
Nothing in this hobby should be raised quickly. Split each day's dose into 2โ€“3 smaller doses into high flow, dissolve in RO/DI first, and re-test before continuing.