These aquarium titanium heating tubes are practically indestructible. You need a heat controller to adjust the temperature. Suitable for Salt or Freshwater. If you have valuable fish, then these are a great choice. These are for glass tanks only. Do not use in acrylic tanks. They have a titanium element and double heating tube. The 3-prong cord requires a 3-prong heat controller (D-1500).
T° =temperature difference between the desired water temperature and room temperature
T°
Gallon
5
10
20
30
40
55
75
90
120
10° F
watts
45
53
80
93
107
127
147
160
180
20° F
watts
90
106
160
187
213
253
293
320
360
30° F
watts
135
160
240
280
320
380
440
480
540
Titanium Heating Tubes
6 ft (3-prong grounded) Cord on 150W and 300W, 10 ft on 500W
