What is considered a "large tank"?

I agree...it's all a matter of perspective....and in this case, size DOESN'T matter....what matters is that you HAVE the tank....
 
I consider anything 90-100 and over as large. Anything over 500 as insane. I might consider 40-75 as medium. With having a 90 they are unbelievably large for a 4' tank. I like my 90 more than my 100. My 150 just doesn't seem like a large tank to me. I think it is because the 90 is so much bulkier and the 150 is more streamlined.
 
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