Seachem Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) calcium supplement for the marine aquarium to replenish the for corals and macroalgae, especially for species like Halimeda Incrassata important calcium levels.
Seachem Reef Advantage Calcium 250g / 500g / 1kg
Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health.
Reef Advantage Calcium™ also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr). This allows one to maintain these two important elements while maintaining calcium. Unlike limewater (kalkwasser), Reef Advantage Calcium™ does not have a caustic pH and will not deplete magnesium. Used as directed, it will not deplete alkalinity.
Use 5 g (1 level teaspoon) per 150 L twice a week. For precise dosing, use the Seachem Digital Spoon Scale. Dissolve in at least 250 mL of RO-water. Check calcium every 2 weeks and adjust amount or frequency accordingly.
Check calcium level (use Reef Status™ Calcium to test magnesium levels), then follow addition regimen above until calcium is adjusted to 380–420 mg/L. Each 5 g/150 L will raise calcium by about 12 mg/L. Quantity or frequency can be adjusted, but do not exceed 10 g/150 L per day. Thereafter, use as required to maintain calcium.
After determining the calcium consumption rate, set up a continuous drip system. Use the following formula (or skip the math and use our Dosage Calculator) to determine how much to add to your top-off water: m=vc/400 (m=grams to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 gallon=3.8 liters, 5 g=1 teaspoon].
DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart.
Keep out of reach of children. Not for human consumption. Handle with care in the aquarium.
100% SATISFACTION GUARANTEE
We want you to be fully happy with your new macroalgae addition. Therefore we offer you a hassle free Satisfaction Guarantee.
If you are not 100% happy with the macroalgae you have received on arrival we will refund you the full money back. *1
We even will cover the return costs. The refund will be offered after we arrived and checked the returned marine algae.
*1 = Valid for UK Orders only, please see our Terms for EU orders HERE
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We offer for sale macroalgae from our mature macroalgae mother colonies in a premium quality & 100% healthy within the UK and EU.
All live algae species are sustainably grown in the UK.
All macroalgae will be well protected when posted to you to ensure that it will arrive in the best condition at yours.
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Have you seen the same macroalgae somewhere else cheaper?
Please just send us a message HERE and we will check your request within 24 hours ( working days only ).
When we can match the other price we will send you a discounted offer which will be valid for the next 7 days after receiving our email.
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The price match offer is only valid for identical, same size/amount and available macroalgae species.
As a proud UK based tax paying business, we don't price match any offers against auction sites or from private sellers.
The price match offer is just valid for UK deliveries. We reserve the right to refuse a price match request.
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