what is the differece between 400 and 1000?
is anyone out there run a 1000w yet?
how are the results compared with other wattage?
i'v run 150,175 and 250's - i like the 250 for growth rates
i'd like to go with a new tank 30in deep
48 x 30 X 30 custom built
my 100 is 18in deep not enough room...