wat does it meen how many watts
clown_nut Member Jul 30, 2004 #4 in the case of your 20 gallon medium lighting might be a 65w 50/50 pc
viper_930 Active Member Jul 30, 2004 #7 I think 130 watts on a 29 gallon would be low-medium lighting, and same for the 65w on the 20.
