Reef Tank Dosing Guide
Reef aquariums need stable chemistry. Corals build skeletons from carbonate and calcium. Algae, bacteria, clams, and filtration also change nutrients. A dosing calculator helps you adjust these values with care. It prevents random additions and gives a measured plan.
Why Dosing Matters
Small chemistry swings can stress coral tissue. Large swings can cause tissue loss. Alkalinity usually changes faster than calcium or magnesium. Nitrate and phosphate also move after feeding, water changes, or media use. Testing first is always the best starting point. Dose only when you know the current value and the safe target.
Planning a Dose
This calculator uses product strength instead of a fixed brand. Enter how much one milliliter raises a chosen parameter in one hundred liters. That makes the tool useful for alkalinity buffer, calcium solution, magnesium mix, nutrient solution, or trace element liquid. The calculator then scales the dose to your adjusted aquarium volume.
Safety and Daily Limits
Reef dosing should be gradual. A total correction may be correct on paper, but too much at once can shock animals. The daily cap field helps split a correction into safer portions. When the planned daily amount exceeds the cap, the tool estimates the minimum number of days needed. This is useful for larger corrections after missed maintenance.
Reading the Result
The result shows the adjusted water volume, required increase, total liquid dose, daily dose, and schedule warning. It also estimates dosing pump time when a pump rate is entered. Use that value as a starting point, then verify with a test kit after the first dose.
Good Reef Practice
Test at the same time of day when possible. Record every result. Keep dosing containers labeled. Shake products if the maker advises it. Never mix unknown supplements together. Add solutions in high flow areas. Wait between different additives. Retest before repeating a large correction. Stable numbers are usually better than perfect numbers. Use this tool as a planning aid, not as a replacement for observation. Healthy reefs respond best to slow, consistent, and well documented changes. Review livestock behavior daily. Polyp extension, growth tips, and clear water often confirm success. Sudden cloudiness, closed corals, or irritation means pause dosing immediately and retest.