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。4 @/ E! P1 M3 n2 R. ]0 e
如花 发表于 2010-7-4 14:48
7 o% d. D7 d. K! z& t& H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.