Adding Sump To Existing Tank

Well, my 75 gallon tank is here and now I'm ready to set it up. Currently I'm going to be running with an Aqueon Quietflow HOB, but I'm planning a sump on Christmas. However, I'm wondering HOW I'm going to apply the sump to my stand. When add the sump, the tank will most likely already be running and It'll be hard to put a 40 gallon sump in the stand. How do I achieve this without taking down everything or modifying the stand? Could I maybe use a 10 gallon sump?

 

I think more importantly how are you going to apply the sump to your tank? Is your tank drilled? If not you will need some kind of overflow. Google "sump without drilling". Maybe also read this post:

https://www.fishlore.com/aquariumfishforum/threads/sump-without-drilling.320525/

 

My sump will use an overflow box.

 

Your question is difficult to answer without seeing your stand. On some closed out stands the side/end panel can be removed so you slide in the sump that way. I think especially for salt water you would want as big a sump as possible, both for the extra water but also to hide as much equipment as possible.