🌱 We're in beta β€” your feedback helps us grow. Share your thoughts
Shoal & Stem

Flora & Fauna

673 entries β€” care guides, placement tips, and notes from the community

coral
expert

Acropora

Acropora sp.

coralsaltwater

Acropora is the largest and most diverse genus of stony corals on earth, encompassing hundreds of species forming branching, table, and bushy morphologies in nearly every colour imaginable. They are the primary reef-building corals and are the benchmark for advanced reef aquariums β€” demanding pristine, stable water chemistry, very high light, moderate to high flow, and expert-level nutrient management. In well-maintained SPS tanks they reward with breathtaking growth and colouration.

coral
expert

Elegance Coral

Catalaphyllia jardinei

coralsaltwater

Elegance coral was once considered easy but is now classified as demanding due to a syndrome ('elegance coral decline') that causes rapid tissue recession in many captive specimens, the cause of which is still debated. Specimens sourced from Australia's Great Barrier Reef tend to fare better than Indo-Pacific stock. It requires low light, minimal flow, and sandy substrate β€” placing it on rock causes tissue damage and death.

shrimp
expert

Harlequin Shrimp

Hymenocera picta

shrimpsaltwater

Extraordinarily beautiful shrimp with large flat claws and white-and-pink/purple spotted pattern. Specialist predator that only eats starfish β€” a specific feeding commitment.

fish
expert

Mandarin Dragonet

Synchiropus splendidus

fishsaltwater

Arguably the most beautiful fish in the hobby. Requires a mature reef with abundant copepods. Not for beginners. Will starve if not given live food.

fish
expert

Regal Angelfish

Pygoplites diacanthus

fishsaltwater

Breathtakingly beautiful with alternating white-and-orange bars. Notoriously difficult to feed in captivity. Red Sea specimens generally adapt better than Pacific ones.