K KiemRaekerm Medium Fish Aug 31, 2004 #1 Jul 30, 2004 55 0 0 36 St. Louis Visit site Aug 31, 2004 #1 K KiemRaekerm Aug 31, 2004 What are some of the wattages I need to follow for heaters in a 5, 10, or 20 gallon tank?
Lotus Ultimate Fish Moderator Sep 1, 2004 #2 Aug 26, 2003 15,115 13 38 Southern California home.earthlink.net Sep 1, 2004 #2 Lotus Sep 1, 2004 The rule of thumb is usually 5 to 10 watts per gallon. If you're only going to need to raise the temp 5 or 10 degrees F, then 5 watts per gallon is enough. So, I would say a 25w for the 5g; a 50w for the 10g; and a 100w for the 20g.
The rule of thumb is usually 5 to 10 watts per gallon. If you're only going to need to raise the temp 5 or 10 degrees F, then 5 watts per gallon is enough. So, I would say a 25w for the 5g; a 50w for the 10g; and a 100w for the 20g.
