The ORA Sand Sifting Cucumber is a valued clean‑up‑crew addition sold in‑store here in Columbus, Ohio. It acts as a sand‑sifting starfish that aerates substrate, helping reduce maintenance and improve water quality. Stock 1 per 50 gal in a balanced reef or fish‑only system for best results. Difficulty: Moderate. Needs large, established sand bed. Drip‑acclimate and maintain stable salinity for long‑term health.