I called a guy about a free 200 gallon in SD yesterday but got no answer, the add was gone an hour after I called. I will forever wonder if it was legit or an April fools joke...
I asked the same question first time I called. Their answer was it was to hard to picture, so they used the 60g setup. Same look just half size, seemed a lil strange to me too. But they have been posting there for about a year now.