全新的培植土表面附有微粒，它們對魚類及植物無害，但會令水呈輕微的黃色及混濁。建議新的培植土在開始使用之前，必須先用清水徹底沖洗表面的微粒。方法可在魚缸內裝 1/3 清水，把培植土（連同白色種植籃）浸在水中，輕微抖動約 30 秒，取出並倒出多餘的水份，再放入水中浸洗，重覆以上步驟約 10 便可清除。There are tiny particles in new growing medium which lead to yellowish and cloudy water, but these particles are harmless to the fish and plant. We suggest to rinse the growing medium under running tap water or simply fill your fish tank with 1/3 full of water and soak the growing medium with the water basket and gently shake them to remove the particles, repeat until the water turns clear.