Can Live Rock Leach Phosphates

Thanks for the comments everyone.. I do try not to overfeed but right now all of my fish are being "acclimated" to a turkey baster for feeding so I don't have to waste so much in the process of trying to get them to eat.. I have one fish that will eat right from it now, but the clowns are nothing more than really small chickens.. :)

Has anyone had/heard of detrimental side effects from using things like Phosban?
 
I've not used Phosban but when I first discovered/learnt about Phosphates (my Salifert test kit went a very dark shade of blue that's how much I had in) I used Rowaphos and within a couple of weeks my levels were right down.
 
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