Giant Anthelia

Anthelia glauca grows in large, swaying colonies of feathery polyps that bring a graceful, soft motion to the mid-tank — it's a stunning filler coral when it's happy. Moderate light and medium flow in the mid-tank suits it well; it needs enough current to wave without being blasted flat. It spreads rapidly via stolons and can overtake neighboring corals if you don't periodically trim back its runner network. Skip the target feeding — Anthelia is photosynthetic and does best in stable, clean water rather than a high-nutrient environment.