When taking the final pic should we be taking the pic from the same angel and the same ruler placement as the first pic?
I see a couple pics where the ruler placement is changing wildly. Sometimes it's on the plug with the coral, next pic it's on the eggcrate. It just makes it look like sometimes it's growing 1/4", lol.
1/4" growth will probably be enough to win it. I'd think your criteria would be the best bet though.