so when clicking on this link, i figired there would be a tutorial on what a sump is, how it works, the best ways to build it, or an instructional as to why we have slits in the shleves or why the drawers are a good ide, or even maybe how big of a pump we need for so many gallons, is there a tutorial that explains to people like me who are new at this just why we need one, or why one is better then a canister filter, or the inner workings of a sump? it would be appreciated. Dont get me wrong i am sure i would love all the hard work that went into the ones show, if i understood just what I am looking at, right now I see a box with somee holes that you can see through. it would kind of be like having someone walk into your house and tell you that you have a beautiful tank, and further that with if he can do it so can i we just have no clue what goes into building something or maintaing something if it is not explained in detail. But thanks for sharing