Salt creep at bottom

[Orion]

Hi,

I'm kind of new to the board and reefing and am hoping that this is the right forum for this question.

I have just filled my 55 gallon with saltwater and there is a small area on the front at the bottom(about 3-4'' long) where i am getting salt creep.It is not a great amount but it is still there. As this is at the bottom of the tank i'm assuming that there is a small leak somewhere. The question is how concerned should I be about this and if it should be fixed how would i go about doing it? Has anyone experienced this? I am thinking to give it a few days to see if it gets better or worse.

Thanks, Brian