I don't know, you don't need to blast it though, just make sure your tank has adequate flow in all areas, would be my advice. I'm sure you don't want that straw in your tank forever, I would take it out and just let things be, if it likes where it is it will show signs of new growth rather quickly(between a couple of days to a couple of weeks), if it doesn't grow, move it to another spot if you can.
I don't know what you are testing for, but when going with SPS and even LPS, Calcium, Magnesium, and Alkilinity should be included with your testing.
Matt