Reef Aquarium Tutorials and Care Guides – Page 3

Learn what to log each week in a reef tank so you can spot trends early, avoid guesswork, and keep your aquarium stable.

Learn why ammonia rises in reef aquariums, what levels are dangerous, and a step-by-step plan to protect fish, corals, and bacteria.

Use activated carbon safely in reef aquariums: when to run it, how to dose it, best placement, and common mistakes to avoid.

Learn why brown diatoms appear in new reef aquariums, how long they last, and a beginner-friendly action plan to clear them safely.

Learn how often to change water in a reef aquarium, how much to replace, and the common mistakes that stress corals and fish.

Choose the right reef cleanup crew for algae and detritus. Learn best beginner-safe species, stocking tips, and the best timing to add them.

Learn how to cycle a reef aquarium step-by-step, how long it takes, how to test, and the most common mistakes that cause algae and losses.

Learn how to pick and size a protein skimmer for a reef tank: bioload, sump vs AIO, air draw, tuning tips, and common mistakes.

Ideal reef aquarium temperature, safe swings, and a clear step-by-step plan to prevent and fix overheating—beginner-friendly guidance.

Learn when to replace RO/DI cartridges, how to read TDS, and prevent water quality drift that fuels algae and stresses reef tanks.