Sea Cardinal Premium Synthetic Salt Mix delivers laboratory‑grade consistency for reefers who demand absolute purity. Each batch is engineered to dissolve fast, mix crystal‑clear, and produce stable parameters that mirror premium seawater—without impurities, clouding, or unwanted swings. Balanced levels of calcium, alkalinity, and magnesium support strong coral growth, vibrant coloration, and long‑term tank stability. Whether you’re filling a new system or preparing weekly water changes, this mix gives your reef the clean foundation it deserves.
TRITON ICP-OES Lab Results
Independent lab test of this salt mix at 35 ppt salinity — tested March 2026.
Parameter
Measured
Calcium (Ca)
430 mg/l
Magnesium (Mg)
1436 mg/l
Potassium (K)
414 mg/l
Strontium (Sr)
9 mg/l
Heavy metals: all tested heavy metals (Cu, Pb, Hg, Cd, As) measured 0.00 µg/l — none detected.
Still have questions? Reach out — we're happy to help.
What's included in a Sea Cardinal turnkey kit?
Every kit ships with the low-iron glass AIO aquarium, a matching stand, return pump, backup mixing pump, wavemaker, heater, ATO, hydrometer, reef salt, and a mixing bucket. Rock, sand, and water are not included — everything else is. If you ever have a question about what's in your box, just reach out and we'll walk you through it.
Is shipping really free on kits?
Yes — freight shipping is included in the kit price anywhere in the continental US. There's no surprise charge at checkout. Free shipping over $100 applies to accessories; tanks and kits already have freight built into their price.
What does the warranty cover?
Your kit is covered against manufacturing defects — if a component fails under normal use, contact us and we will make it right with replacement parts or a fix, whichever gets your tank running fastest. Please note: the warranty does not cover damage that happens during shipping. To protect against that, add shipping insurance to your order at checkout.
I'm new to saltwater. Is a kit right for me?
That's exactly who our kits are built for. Everything is matched to work together, so there's no guessing about which pump fits which tank. Our free Box to Reef setup guide walks you through the whole process step by step, and we're happy to answer questions anytime.
Choosing a selection results in a full page refresh.
