SKU: 82184482809

Seachem Reef Complete 250ml

Sale price$109.35 Regular price$121.50
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Description

Seachem Reef Complete 250mlSeachem Reef Complete 250ml Seachem Reef Complete is a concentrated (160,000 mg L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. 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. To prevent this you must provide calcium (Reef Complete) and carbonates (Reef

Seachem Reef Complete 250ml

Seachem Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. 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. To prevent this you must provide calcium (Reef Complete) and carbonates (Reef Builder™ or Reef Carbonate™).

Reef Complete 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.

Reef Complete is a blended product. It is not simply calcium chloride. Commercially available calcium chloride contains ammonia. Unlike other ionic calcium supplements, Reef Complete is blended to a higher pH in order to force the ammonia to gas off into the atmosphere. In addition, Reef Complete is more concentrated than any other liquid product on the market. Reef Complete contains 160,000 ppm calcium. Our nearest competitor’s product is only 110,000 ppm calcium.

  • Liquid ionic calcium source
  • Most concentrated calcium supplement on the market (160,000 mg/L)
  • 100% soluble. Be wary of products that are milky white or need to be shaken

Beginner
Use 1 capful (5 mL) per 80 L (20 US gallons) twice a week. Check calcium every 2 weeks and adjust amount or frequency accordingly.

Advanced
Check calcium level (use Reef Status™: Calcium to measure calcium), then follow addition regimen above until calcium is adjusted to 380–420 mg/L. Each 5 mL/80 L (20 US gallons) will raise calcium by about 10 mg/L. Quantity or frequency can be adjusted, but do not exceed 12.5 mL/80 L (20 US gallons) per day. Thereafter, use as required to maintain calcium.

Expert
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/160 (m=mL of product to add to top off water, v=volume of tank in liters, c=amount to raise calcium in mg/L). [For reference: 1 US gallon=3.8 L].

Notes
If used with Reef Calcium™, it is not necessary to exceed 380 mg/L total calcium. Use Reef Status™: Calcium to measure calcium.

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.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 82184482809

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L.A.
Natrona Heights, US
★★★★★ 5
Good Solid Mount
Got for my 2019 TRD Off Road. Works great, solid mount. Phone easy in, easy out once you get used to it. Looks and feels well made.
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Reviewed in the United States on May 19, 2026
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Amazon Customer
Omaha, US
★★★★★ 5
Solid Product
I was a bit skeptical based on the price ($85 total after taxes) but you can tell that for the price, this thing is sturdy and high quality. Holds solid onto the vent and keeps my iPhone in place. Easy to adjust and move to your liking, also easy to turn 90* and have your phone sideways. Only drawback is that is obstructs the view of the clock on my 4Runner and slightly obstructs my windshield, but I am sure I will get used to it.
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Reviewed in the United States on May 14, 2026
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Annika Chestnut
Lowell, US
★★★★★ 5
Great phone holder
I use this phone mount in my Subaru Impreza, and it works perfectly with my vents. It holds my phone super securely—no wobbling or slipping—so it’s great for navigation or hands-free use. Really solid and reliable for the price.
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Reviewed in the United States on November 5, 2025
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Amanda & Josh
Battle Creek, US
★★★★★ 4
Excellent product.
First impression: excellent product. The only reason I deducted a star is because the price is obviously quite insane.
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Reviewed in the United States on February 26, 2026
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Edward F Alves
Port Orchard, US
★★★★★ 5
A+ mount for 4Runners
This is the best phone mount I've ever had. Got it for my 2021 4Runner. Very strong, doesn't come loose, easy to place and remove the phone from the mount. Can't recommend enough.
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Reviewed in the United States on February 13, 2026

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