The temperature dropped suddenly and the fish was okay. I usually raise them at 25 degrees. Fortunately, the heating rod is not broken. Is this because the socket is aging? 
<img src="http://static2.yulinapp.com/2019/1205/06/1575500575489.jpg >========How did the fish friends of the Xianglong Aquatic Alliance comment==
気盛の哖轻人℡ Yuyou said: Its not good not to order the room
shibin18 Yuyou said: Pay attention to safety!
Grandpa Yuyou said: The socket is aging, too much overload is used, and the socket is not real
Flying fish 001 Yuyou said: There are the following reasons, for reference only: 1. The socket has been in use for a long time and the power is too large.2. The plug is not inserted properly, resulting in poor contact.But the first may be larger.
Langlibai 002 Yuyou said: Pay attention to safety
犟末1972 Yuyu said: Dare to continue to use this socket, admire youreally big
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