Flashbang Chalice Coral (Echinophyllia sp.) thrives with stable, moderate conditions and careful placement. Aim for low to moderate light (PAR ~75–150); start in shaded lower areas and gradually increase exposure to avoid bleaching. Provide gentle, indirect flow that keeps the surface free of debris without lifting tissue; too much flow can cause recession, too little invites detritus and algae. Feed 2–3 times weekly after lights out with small meaty foods (mysis, reef roids, finely chopped seafood); turn off pumps for 10–15 minutes to improve capture. Target parameters: temperature 75–78°F (24–26°C), salinity 1.025–1.026, pH 8.1–8.4, alkalinity 8–9.5 dKH, calcium 400–450 ppm, magnesium 1300–1400 ppm, nitrate 5–15 ppm, phosphate 0.03–0.10 ppm. Use reliable test kits and a PAR meter or app; this coral is sensitive to rapid swings, especially in light, alkalinity, and salinity.Place low to mid in the tank on a stable rock ledge or tile to allow encrusting growth; keep 3–6 inches from neighbors due to nighttime sweepers and strong stings. Avoid direct contact with aggressive LPS. Acclimate by light-shading over 1–2 weeks; dip new pieces to reduce pest risk. Watch for paling (too much light or too clean water), receding edges (excess flow, low nutrients, or unstable alk), and brown jelly (frag away infected tissue, iodine dip, increase flow slightly). Run carbon to reduce chemical warfare, siphon detritus nearby, and maintain consistent top-off to keep salinity steady.