Rhodactis – Rhodactis indosinensis Rhodactis indosinensis, known simply as the Rhodactis or “Hairy Mushroom,” is a large, fleshy corallimorph renowned for its textured surface and bold coloration. Ranging from metallic greens and blues to ultra-premium “bounce” morphs with inflated vesicles, Rhodactis adds movement and depth to reef displays with its dynamic, undulating surface. It thrives in low-flow environments and is among the most adaptable and visually rewarding soft corals, suitable for both entry-level and advanced aquarists. Lighting: Low to moderate (50–120 PAR); colors intensify under blue-dominant LEDs while avoiding tissue light stress under high intensity Flow: Low; gentle, indirect flow preferred to prevent detachment or retraction Placement: Bottom to middle of the aquarium on rockwork or rubble; ensure space for expansion as colonies can grow large and carpet areas over time Temperature: 76–80°F (24–27°C) Salinity: 1.024–1.026 SG pH: 8.1–8.4 Alkalinity: 8–10 dKH Calcium: 400–440 ppm Magnesium: 1250–1350 ppm Nutrients: Moderate to elevated (NO₃ 10–20 ppm, PO₄ 0.05–0.15 ppm); nutrient-rich systems promote larger, fuller tissue expansion Feeding: Primarily photosynthetic but benefits from occasional feedings of finely minced seafood, coral roids, or liquid planktonic blends Aggression: Low; non-stinging, but can outcompete nearby corals via slow encroachment or shading Growth Rate: Moderate; spreads through fission and tissue budding, forming soft carpets over substrate Care Level: Easy – hardy and resilient, well-suited for mixed or soft coral systems Compatibility: Peaceful; ideal for placement alongside Discosoma and Ricordea species, but should be kept away from stony corals to prevent overgrowth