Reef Aquarium Tutorials, Parameter Guides, and Care Tips

Set up an ATO for a reef tank: ideal settings, common failures, troubleshooting tips, and must-have safety layers to prevent floods and salinity swings.

Quickly tell cyanobacteria from dinoflagellates and follow a beginner-safe 7‑day plan to stabilize nutrients, flow, and light.

Learn when to run ICP-OES, how to read your reef report, and correct trace elements safely—without overdosing or chasing numbers.

Target calcium and magnesium ranges for reef tanks, how to test them, and safe, low-stress correction steps for stable coral growth.

Learn how to calibrate a refractometer for reef tank salinity using 35 ppt solution, avoid common mistakes, and get accurate readings fast.

Learn safe ways to raise or lower aquarium alkalinity (KH), ideal ranges, testing tips, and how to avoid common reef dosing mistakes.

Beginner-friendly Yellow Tang care: tank size, diet, compatibility, acclimation, and common mistakes for a healthy reef aquarium.

Learn what blue tangs eat in the wild and in aquariums, the best foods to offer, feeding schedule, and common diet mistakes to avoid.

Learn what nitrite is, why it’s dangerous, and step-by-step ways to lower it fast and keep it at zero with simple testing and habits.

Stop green microalgae with better nutrients, flow, and light. A beginner-safe plan to clean surfaces, prevent regrowth, and protect corals.