Strontion – FAQ

What is Strontion?
Strontion is a highly concentrated liquid strontium supplement designed to increase and maintain strontium levels in marine and reef aquariums.

What does Strontion do?
It supplies strontium, an element incorporated into coral skeletons (aragonite), helping support skeletal growth and overall reef development.

Why is strontium important in a reef aquarium?
Strontium is a natural component of aragonite, the material corals and other reef organisms use to build skeletons. Maintaining proper levels can support coral growth and structural development.

What strontium level should I maintain?

• Target range: ~8–12 ppm
• Stability is more important than exact numbers 

What makes Strontion different from other strontium supplements?

• Ionic formulation for immediate availability
• Highly concentrated
• Free of unwanted organics (no EDTA or gluconates)
• Free of phosphate and silicate 

Is Strontion safe for fish, corals, and invertebrates?
Yes. When used as directed, it is safe for all marine aquarium inhabitants.

When should I use Strontion?

• When strontium levels fall below target range
• In reef aquariums with corals, clams, or other calcifying organisms
• In systems focused on maximizing coral growth

How do I dose Strontion?

• Shake well before use
• Typical starting dose: ~5 ml per 20 gallons every other day
• Adjust dosing based on strontium test results 

How much will Strontion raise strontium levels?
Approximately 1 ml increases strontium by ~8 ppm per gallon (estimate; always test and adjust).

How often should I dose Strontion?

• Every-other-day or daily dosing depending on demand
• Adjust based on your aquarium’s uptake rate

Should I test strontium before dosing?
Yes. Testing is recommended to avoid overcorrection and maintain proper levels.

Can I overdose Strontion?
Yes. Excess strontium can disrupt ionic balance. Dose carefully and monitor levels.

Can I use Strontion with other supplements?
Yes. Strontium works alongside other major elements:

• Calcium (Calcion or Reef Code A)
• Alkalinity (Reef Code B)
• Magnesium (Magnesion)

Maintaining balance between all elements is important for reef stability.

What problems does Strontion help solve?

• Suboptimal coral growth
• Incomplete skeletal development
• Trace element depletion in reef system