Anything special about corner tanks?

Saltwater35gal

New member
I'm thinking about upgrading from my 55 gal bow front tank (Tital 75 Seachem filter, and hang on prot. skimmer) to a 75 gal corner tank that somebody is giving away. It has been used for freshwater. Is there anything fifferent about the shape or size? Do I need to rethink my filtration or can I do the same? Once per week 10% water changes still OK?
 
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