Sorry I have been busy the last few days, thanks for all the advice.
the tank I have ,is a blue planet corner tank , I had bought it 4-5 years ago with all the gear cheap of a friend who wanted out of the hobby and I wanted in.....ATM it has a canister filter built into the top and I am going to change it to a small sump I have made and place it in the same location, so the way its going to work is pump to sump gravity feed out, same principle as its current canister. I dont want to re-use the current pump being the third blue planet replacement... prob not big enough either ? (1200L/h)
I am going this way because I am sick to death of looking at the skimmer hanging off the front of the tank. it has no room for HOB anything.
I will post pics of what Im working with.