Stepping up to the big leagues

[incept]

Sooo, I've been doing a fair bit of research and reading lately. I currently have a 90g display tank setup with a 30 gallon sump. I want to move up to a plus size tank now. Looking at building a house and the wife and I would like to do a in the wall set up. I am looking at a 350g tank right now that I can get for a good price being used and all. Just looking for some tips, advice and pointers on setting up and running a big tank like this. Anything to be done differently, different setup, stuff like that. I would like to house all the supplemental stuff underneath the big tank like I have my 90 setup and not have a dedicated room if possible. Thanks for the help!

 

[veselym]

I am wanting to do the same thing but a 120 or 150...I will be hard plumbing everything in a separate room, seems just easier to clean and maintain instead of squeezing things under a stand