Reef tank blog
Saltwater-only articles: parameters, fish, corals, lighting, cycling, algae & pests, and automation.
- Water chemistry & parametersHans-Werner Balling's three-part + trace system—principles, recipes, and practical adjustments.By Centridae
- Water chemistry & parametersHow a calcium reactor works—CO2, media, effluent tuning—and when it makes more sense than two-part.By Centridae
- Water chemistry & parametersHow kalkwasser supplements calcium and alkalinity, dosing via ATO, and pH benefits.By Centridae
- Water chemistry & parametersCalcium chloride + alkalinity buffer: how two-part works, brands, dosing calculators, and when to upgrade.By Centridae
- Reef keeping essentialsWhich Hanna instruments to buy, calibration tips, cuvette care, and when colorimeters beat liquid kits.By Centridae
- LightingLiquid tests vs Hanna checkers vs titration kits—accuracy, cost, and ease of use.By Centridae
- Water chemistry & parametersWhat ICP-OES measures, how to interpret results, sampling best practices, and which labs to use.By Centridae
- Reef keeping essentialsWhy oxygen matters, surface agitation, skimmer contribution, and signs of low O2.By Centridae
- Water chemistry & parametersOxidation-reduction potential: what it measures, typical ranges, and whether to monitor it.By Centridae