Reef tank blog
Saltwater-only articles: parameters, fish, corals, lighting, cycling, algae & pests, and automation.
- Which Hanna instruments to buy, calibration tips, cuvette care, and when colorimeters beat liquid kits.By Centridae
- Liquid tests vs Hanna checkers vs titration kits—accuracy, cost, and ease of use.By Centridae
- What ICP-OES measures, how to interpret results, sampling best practices, and which labs to use.By Centridae
- Why oxygen matters, surface agitation, skimmer contribution, and signs of low O2.By Centridae
- Oxidation-reduction potential: what it measures, typical ranges, and whether to monitor it.By Centridae
- Why reef tanks need tight temperature bands, heater/chiller strategies, and controller fail-safes.By Centridae
- Instruments (refractometer vs hydrometer), target ranges, calibration, and why consistency matters most.By Centridae
- pH drivers in marine systems—CO2, alkalinity, photoperiod—and whether to chase a number.By Centridae
- Phosphate sources, how it interacts with alkalinity, GFO media, and balanced nutrient approaches.