Hey fishlore, I've come to a crossroads when choosing my next tank. I have been looking to upgrade my 120gallon discus community tank. My end goal is to be able to add more discus. I've been looking at either getting a 225 gallon (72X24X26) or a 300gallon. The 300 gallon i was looking at was a deep dimension of (72x36x27). i think i can get both with corner flows. Does anybody have any recommendations on which size i should go for? I plan to plump in a wet/dry sump in whatever tank i pick.