Large-polyp stony (LPS) corals are the perfect intermediate-difficulty coral. They are more demanding than softies but far more forgiving than SPS. Hammers, frogspawn, torches, and duncans are the entry points.
Light
PAR 100–200 with full polyp extension as your visual confirmation.
Flow
Gentle, indirect flow. Polyps should sway, not whip.
Spacing
Euphyllia (hammers, frogspawn, torches) sting neighbors aggressively. Leave at least 6 inches between different species.
Plumbing is the difference between a quiet, leak-free reef and a 24/7 anxiety machine. Three principles separate professional plumbing from amateur work.Bulkhead…