Conditional formatting is done with a formula, and that formula can use relative references. In this case, we'd want the reference to the column to be anchored, but the row to be relative - a mixed reference.
I'm a little unclear in your reference image on which columns are which, since the column letters aren't included; I'm going to assume that the "Min" column is column E, and the data are running from column F to column Q. Obviously, adjust this answer as appropriate for your actual situation.
The easiest way to do the job is to start by selecting your range. You'll want to pay attention to which cell you start the selection from; you'll see why shortly. So in my sample set, I'm starting from F2:
With the range selected, go to Home | Conditional Formatting | New Rule, and in the New Formatting Rule window choose Format only cells that contain.
In the bottom section, choose
Cell value, then
Less than or equal to. The last box is where we'll tell it which cells to check for the reference value.
This is where the note we took of which cell we started selecting from comes in handy. You need to make sure the row you enter here matches the row you started selecting from. Check the name box in the upper left if you're not sure - that shows the active cell. The two row numbers need to match.
Enter the cell reference in the format
=$E2. This will keep the column absolute but the row relative, and the row will change appropriately as the formatting propogates down your rows.
This result should give you the highlighting you're looking for - this is what I saw when I hit OK: