water chemistry

ICP-MS

Inductively Coupled Plasma Mass Spectrometry

Definition

ICP-MS (Inductively Coupled Plasma Mass Spectrometry) is a lab-grade water testing method that measures 30+ elements at parts-per-billion precision. The reef-keeping standard for diagnosing trace-element imbalances that home test kits cannot detect.

Practical use in aquariums

Sample 50 mL of tank water, ship to ATI, Triton, or Fauna Marin (USA: Reef Moonshiners). Results show Ca, Mg, Sr, Ba, K, I, F, B, Li, Mn, Fe, Cu, Zn, Ni, Mo, Co, Cr, Pb, Hg, As at exact ppb. Use to fine-tune trace dosing - especially when SPS coloration stalls despite stable Ca/Alk/Mg.

How ICP-MS fits the bigger picture

Understanding ICP-MS matters because it's connected to broader husbandry decisions: water chemistry is the foundation of every other aquarium parameter - chemistry mistakes show up months later as livestock loss.

Browse the Fast Aquatics care library for full husbandry tutorials covering ICP-MS in context.

Aquarium-keeping fundamentals

Whatever specific topic brought you here, four fundamentals govern long-term aquarium success: water quality, parameter stability, biological filtration, and species-appropriate husbandry. Skip any one and the others struggle to compensate.

Water quality: ammonia + nitrite at zero, nitrate under 30 ppm freshwater + 10 ppm reef. Test weekly with API or Salifert kits. Use our water parameter checker to score your readings against your tank type.

Parameter stability: stable wrong parameters beat fluctuating ideal parameters. Most fish tolerate a wide pH range if it's stable. Sudden swings of 0.4+ pH or 5+°F kill fish faster than chronic suboptimal values. Use temperature controllers (Inkbird) + automated dosing for consistency.

Biological filtration: the bacterial colony on your filter media + rock + substrate is the engine. Never replace all media at once. Use our filter turnover calculator to size correctly.

Species-appropriate husbandry: research adult size, territoriality, diet, and tankmate compatibility before purchase. Use our tank stocking calculator + compatibility guides.

Frequently asked questions

How long does an aquarium take to set up? 4-6 weeks for full cycling + first stocking. Use our cycle ETA calculator + how long does cycling take.

What's the best aquarium for beginners? 20-gallon long. Big enough for parameter stability, small enough for budget + space. See beginner picks.

Why does my fish keep dying? 5 leading causes: uncycled tank, wrong species pairings, no quarantine, undersized tank, neglected water-change schedule. See full diagnosis.