Hanna PO4 testing

[JetJumper]

Originally Posted by Reef Supplies

The Hanna kits are super accurate but do not respond well to testing errors, even finger prints and micfro bubbles can give you a false reading.

If you're 100% sure you tested correctly your good to go.

Check out the Hanna video http://www.youtube.com/watch?v=kST09KWv9C0

thanks for this video. I guess I didn't read the directions well on mine. didn't know there was a timer function!