Lesson learned?

[niloc16]

good advice. speeking of kalk, i dont add any calcium aside from whats in the salt from weekly water changes. my calcium never drops below 400 and averages around 425, is it still necessary to supplement calcium if my level is staying up? another question i keep forgetting to ask you guys is flow. in my 55 i'm turning it over about 15 times an hour, sufficient? i get very little if any detritus collecting on the sand and when it does it seems to be in an area that i can access easily. for flow i use 1 maxijet 1200 and 2 maxijet 600 and the penguin 330 provides surface flow