I have a AG 2x2x4ft, not large but when you get over 22" deep you are up to you arm pits, I have a hadicap "grabber" from Walgreens to reach down the the bottom. I wish it was only 20" deep but have to go with what is made, I wanted a 4ft wide tank and one that was 2ft front to back, down side was it was 2ft deep too.
Bob