“水下植物园”为家居观赏性装饰 ,它的制作技术如下 :一、制作原料鱼缸一个 ;普通无色透明硅玻璃棒一只 ;硅酸钠（俗称水玻璃 ,也叫泡花碱）若干 ;硫酸铁、硫酸亚铁（绿矾）、硫酸铜（蓝矾）、硫酸镍、硫酸亚钴或氯化钴、硫酸锌若干（上述化学药品应从化学试剂店购买）。二、 “Aquatic Botanic Garden” ornamental home decoration, and its production techniques are as follows: First, the production of a raw fish tank; ordinary colorless transparent silicon glass stick a; sodium silicate (commonly known as water glass, also known as sodium silicate) Ferrous sulfate, ferrous sulfate, cupric sulfate, nickel sulphate, cobaltous sulphate or cobalt chloride, and some zinc sulphate (the above chemicals should be purchased from chemical stores). two,