Fill a clean plastic jar( a peanut-butter jar works well) almost to the top with water. Gently lower each metal nut into the jar and arrange your fish and seaweed.

• 拿一个塑料瓶将水灌至瓶口附近。轻轻地把每个金属螺母放到罐子里，将这些水草和鱼布置一下。