Heater Size in Watts

[MADMIKE]

Heres a general chart of wattages and tank sizes.

Watts / Tank Size

25 / 2-5 Gallons
50 / 10 -15 Gallons
75 / 15 - 20 Gallons
100 / 20 - 30 Gallons
125 / 30 - 45 Gallons
150 / 40 - 60 Gallons
200 / 60 - 90 Gallons
250 / 90+ Gallons


Aquarium Size Desired Increase Above Room Temperature
Liters...Gallons.............5ºC/9ºF...10ºC/18ºF....15ºC/27ºF
25.........5......................25.............25...............75
50.........10....................50.............50...............100
75.........20....................50.............75...............150
100.......25....................75.............100..............200
150.......40....................100............150.............300
200.......50....................150............200.........(2) 200
250.......65....................200............250.........(2) 250
300.......75....................250............300.........(2) 300
Tank Size..........................Heater Size in Watts