我估计我的pond不够深,冬天的时候会整个结冰,鱼都会死掉的。# ` |1 N! K# M# G2 T4 w. X6 X4 U8 ~. r0 l
如花 发表于 2010-7-4 14:48
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可以買一產品名deicer,讓冰面留一圓洞便可,冷天覆蓋sterofoam insulate,用電量不會很多,Princess Auto有 an identical but differently named product 叫 water trough heater 賣價便宜得多,大約 C$35.