Automated tests (Trident, KH Guardian)
Devices that automatically measure water parameters at programmed intervals. The next level of reef monitoring.
Detailed explanation
The Neptune Trident automatically measures calcium, KH, and magnesium every 1-6 hours using liquid reagents. The results are recorded and graphed in the Apex controller.
The GHL KH Director/Guardian measures KH automatically and can also dose automatically in response to the reading.
The Reef Factory Smart Tester measures multiple parameters with interchangeable reagent cartridges.
These devices eliminate the variability of manual measurements and show trends over time (calcium and KH consumption varies with coral growth, temperature, lighting).
The cost is high (400-800 euros + consumable reagents) but for those who have a valuable reef aquarium they are a sensible investment.