Seachem Reef Advantage Calcium
Seachem Reef Advantage Calcium is a concentrated powdered ionic calcium supplement for marine reef aquariums, supplied in a 250 g container. It is designed for reef keepers maintaining calcium levels for coral growth while also supplying magnesium and strontium in proportionate amounts.
This non-caustic formula has a pH of 8.3–8.6 and is formulated to restore and maintain calcium at levels found in natural seawater. Unlike limewater (kalkwasser), it does not have a caustic pH and will not deplete magnesium.
Key Benefits
- Provides ionic calcium for marine aquarium use.
- Includes magnesium and strontium at typical utilisation ratios of 100:5:0.1 (Ca:Mg:Sr).
- Helps maintain magnesium and strontium while maintaining calcium.
- Can be added directly to the aquarium after dissolving in freshwater.
- Used as directed, it will not deplete alkalinity.
Dosage
- Beginner: Use 5 g (1 level teaspoon) per 150 L (40 gallons) twice weekly. Dissolve in at least 250 mL (1 cup) of freshwater. Check calcium every 2 weeks and adjust the amount or frequency accordingly.
- Advanced: Test calcium, then use the above regimen until calcium reaches 380–420 mg/L. Each 5 g per 150 L raises calcium by approximately 12 mg/L. Do not exceed 10 g per 150 L per day.
- Expert: For continuous drip dosing, use m=vc/400, where m is grams to add to top-off water, v is aquarium volume in litres and c is the desired calcium increase in mg/L.
Compatibility
- Do not directly mix with any carbonate supplement.
- Add calcium and carbonate additives on alternate days, or at least 30 minutes apart.
- When used with Reef Calcium™, it is not necessary to exceed 380 mg/L total calcium.
- Use Reef Status™: Calcium to measure calcium.
What's Included
- 250 g Seachem Reef Advantage Calcium powder.
Frequently Asked Questions
How much Seachem Reef Advantage Calcium should I use in a 150 L aquarium?
Use 5 g (1 level teaspoon) per 150 L twice a week, dissolved in at least 250 mL of freshwater.
How much will a 5 g dose raise calcium?
Each 5 g dose per 150 L raises calcium by about 12 mg/L.
What calcium level should I aim for in my reef aquarium?
Follow the addition regimen until calcium is adjusted to 380–420 mg/L, then use as required to maintain the level.
Can I add this calcium supplement with a carbonate additive?
Do not directly mix it with a carbonate supplement. Add the two additives on alternate days or at least 30 minutes apart.
What is the maximum daily dosage?
Do not exceed 10 g per 150 L per day.
Does Reef Advantage Calcium contain other reef elements?
Yes. It includes magnesium and strontium in a 100:5:0.1 calcium, magnesium and strontium ratio.
Seachem Reef Advantage Calcium
Pickup available at Eden meadows shopping centre
Usually ready in 2-4 days
Seachem Reef Advantage Calcium
250G
-
Eden meadows shopping centre
Pickup availableUsually ready in 2-4 days
Eden meadows shopping centre
Edenvale
GP
1609
South Africa
Seachem Reef Advantage Calcium
Seachem Reef Advantage Calcium is a concentrated powdered ionic calcium supplement for marine reef aquariums, supplied in a 250 g container. It is designed for reef keepers maintaining calcium levels for coral growth while also supplying magnesium and strontium in proportionate amounts.
This non-caustic formula has a pH of 8.3–8.6 and is formulated to restore and maintain calcium at levels found in natural seawater. Unlike limewater (kalkwasser), it does not have a caustic pH and will not deplete magnesium.
Key Benefits
- Provides ionic calcium for marine aquarium use.
- Includes magnesium and strontium at typical utilisation ratios of 100:5:0.1 (Ca:Mg:Sr).
- Helps maintain magnesium and strontium while maintaining calcium.
- Can be added directly to the aquarium after dissolving in freshwater.
- Used as directed, it will not deplete alkalinity.
Dosage
- Beginner: Use 5 g (1 level teaspoon) per 150 L (40 gallons) twice weekly. Dissolve in at least 250 mL (1 cup) of freshwater. Check calcium every 2 weeks and adjust the amount or frequency accordingly.
- Advanced: Test calcium, then use the above regimen until calcium reaches 380–420 mg/L. Each 5 g per 150 L raises calcium by approximately 12 mg/L. Do not exceed 10 g per 150 L per day.
- Expert: For continuous drip dosing, use m=vc/400, where m is grams to add to top-off water, v is aquarium volume in litres and c is the desired calcium increase in mg/L.
Compatibility
- Do not directly mix with any carbonate supplement.
- Add calcium and carbonate additives on alternate days, or at least 30 minutes apart.
- When used with Reef Calcium™, it is not necessary to exceed 380 mg/L total calcium.
- Use Reef Status™: Calcium to measure calcium.
What's Included
- 250 g Seachem Reef Advantage Calcium powder.
Frequently Asked Questions
How much Seachem Reef Advantage Calcium should I use in a 150 L aquarium?
Use 5 g (1 level teaspoon) per 150 L twice a week, dissolved in at least 250 mL of freshwater.
How much will a 5 g dose raise calcium?
Each 5 g dose per 150 L raises calcium by about 12 mg/L.
What calcium level should I aim for in my reef aquarium?
Follow the addition regimen until calcium is adjusted to 380–420 mg/L, then use as required to maintain the level.
Can I add this calcium supplement with a carbonate additive?
Do not directly mix it with a carbonate supplement. Add the two additives on alternate days or at least 30 minutes apart.
What is the maximum daily dosage?
Do not exceed 10 g per 150 L per day.
Does Reef Advantage Calcium contain other reef elements?
Yes. It includes magnesium and strontium in a 100:5:0.1 calcium, magnesium and strontium ratio.
