Nice short and sweet cheat sheet but really without the understanding of what each number means and the relationship to how it interacts with other chemicals like the reefkeeping article explains it's not useful for newbies.
Committing the main parameters to memory (temp/ph/
sg/
alk/
ca) is also easy but knowing all the possible chemical reactions takes a little longer.
Biggest mistake newbies make is rushing their tank and not keeping up with weekly
pwc which will keep your parameters "optimal" without even trying.