Volume of Sunsun 303B

[howmanyds]

I have two of these on my empty 75gallon soon-to-be African community tank. Does anybody know their volume and whether I should be including that when I calculate a 10 or 20% pwc?

 

[Mumma.of.two]

You do not include the volume of the filter for calculating water changes. If you are looking at cichlids you are going to have to increase water changes to more like 50% twice weekly.