“Do I actually need to feed my corals?” It’s one of the most common questions in reefkeeping, and the honest answer — “it depends on the coral, and probably yes” — deserves a real explanation. Light does a lot of the work in a reef tank, but photosynthesis alone isn’t the whole story, and the…
Diagnose a sick coral fast: tell bleaching, STN, and RTN apart and take the right action before it spreads.
A beginner’s guide to fragging corals: tools, technique, and aftercare to safely propagate your reef.
How corals fight with sweeper tentacles and chemical warfare, and how to space them to prevent losses.
Acropora and SPS basics for intermediate reefers: the stability, light, and flow these demanding corals need.
Why mushroom corals are the bulletproof beginner coral, plus care tips to grow a colorful mushroom garden.
Care for Euphyllia corals, hammer, torch, and frogspawn, covering placement, flow, feeding, and aggression.
Zoanthid and Palythoa care: lighting, flow, color, and the palytoxin safety every reefer should know.
The science behind coral coloration: how light, nutrients, and pigments combine to make coral pop with color.
Troubleshoot why your coral isn’t growing, from alkalinity swings to light and flow, with fixes that work.