The present invention relates to a heater for an aquarium having a cam, and a method for managing an aquarium using the same, and is formed to set a temperature high and low by rotating left and right at the top of the housing of the aquarium heater 10 having a cam. A temperature control unit 11 configured to display the temperature set by the control unit 11 on the flat plate temperature gauge 13 and the main temperature gauge 15 according to the control of the control unit 17； The cam angle adjustment unit 12 is formed to adjust the shooting angle of the shooting cam 14 through left and right rotation under the temperature control unit 11, and automatically sets the rotation according to the control of the control unit 17 ； A flat plate temperature gauge 13 formed on the upper surface of the mounting portion bx of the cylindrical control unit 17 under the cam angle adjusting unit 12 to improve visibility of the set temperature by the user； And a cam 14 for photographing which is formed in a body rotatable under the mounting part bx of the control unit 17 mounted with the flat plate temperature gauge 13 to take an angle of 360 degrees inside the aquarium through rotation. It characterized in that it includes containing. Accordingly, by providing a cam for photographing to allow observation of the ecology inside the aquarium while maintaining the temperature control function of the existing aquarium, the internal image is not only provided to a mobile device such as an external user's smart phone or a smart pad. Rather, it provides the effect of controlling another management device, such as an automatic feeding machine, by analyzing the image.본 발명은 캠을 구비한 수족관용 히터, 이를 이용한 수족관 관리 방법에 관한 것으로, 캠을 구비한 수족관용 히터(10) 하우징의 최 상단에 좌우 회전을 통해 온도를 높고 낮게 설정하기 위해 형성되며, 온도 조절부(11)에 의해 설정되는 온도는 제어부(17)의 제어에 따라 평판 온도게이지(13) 및 주 온도게이지(15)에 표시되도록 하는 온도 조절부(11)； 온도 조절부(11)의 하부에 좌우 회전을 통해 촬영용 캠(14)의 촬영 각도를 조절하기 위해 형성되며, 제어부(17)의 제어에 따라 자동으로 회전 설정이 수행되는 캠 각도 조절부(12)； 캠 각도 조절부(12)의 하부에 원통형상
