euroreef cs 12-2

[JasonCass]

Looking at buying one of these units are they worth buying. It comes with two sedra 5000 pumps. If I buy this unit I hear these pumps are garbage and I need to upgrade to a better pump like an eheim or a another pump that starts with an s. What should I do for mods to this unit if I buy it to maxamize its peformance and are these dirrect replacements or is they work invoved if so how do I do them. Thanks Jason