Seachem Laboratories Reef Complete Supplement 8.5 fl. oz

A thriving reef is a labor of love, and the corals you tend depend on steady calcium to keep growing. Seachem Laboratories Reef Complete Supplement is a concentrated, optimized blend of ionic calcium designed to restore and maintain calcium to the levels found in natural seawater, and Seachem notes it does this without affecting pH. This is the 8.5 fl oz size, a manageable bottle for hobbyists dosing a single tank. Give your corals the building blocks they need to flourish.

• A concentrated ionic calcium blend, listed at 160,000 mg/L, optimized to restore and maintain seawater calcium levels.
• Seachem says it works without affecting pH, so you can support calcium without upsetting your tank's balance.
• Calcium and carbonates are essential to all coral growth, and Reef Complete supplies the calcium side of that equation.
• Helps guard against the deficiency that, per Seachem, can cause coral growth to cease and coral health to decline.
• Also includes magnesium and strontium in amounts proportionate to typical utilization ratios of 100:5:0.1 (Ca:Mg:Sr).
• That balanced formula helps maintain magnesium and strontium while you maintain calcium.
• Seachem positions it as a liquid ionic calcium and advises against products that are milky white or need to be shaken.
• The label says DO NOT OVERDOSE, so following directions keeps dosing safe and controlled.
• Pairs with carbonate supplements like Reef Builder or Reef Carbonate to cover both calcium and carbonates.
• The 8.5 fl oz size suits single-tank reef keepers and those new to dosing calcium.

Healthy coral growth comes down to consistency, and Reef Complete makes it easier to keep calcium where your corals want it. Because Seachem includes magnesium and strontium in proportionate amounts, you support several key elements together rather than chasing them one at a time. Use it as directed alongside a carbonate source, never overdose, and let your reef do what it does best, slowly and beautifully filling out. This 8.5 fl oz bottle is a fine starting point for caring reef keepers who want their corals to keep building. Give your underwater garden the steady calcium foundation it needs to thrive.