From my understanding it appears photos need to go in 2 different spots. A build log and somewhere else right? Also the 1 picture a month does not specify having water or even being a FTS.
"Each participant will be responsible for a build log (min 3 photos) as well as photos at the beginning of each month (min 1)."
Edit...
I guess it's this piece your talking about in the Livestock section
"All tanks must be set up no later than February 15th, and no sooner than January 15th."