how do you mix the lime in with dh sample?

Do you just add the drops of lime and leave it or do you have to swirl so it mixes together?  I'm cautious of damaging the sperm!!

Kill them eh?  Did you see my post...I did kill them...or froze them all... I added a drop or two, swirled in ever so gently then tested ph.   Maybe that's what I did wrong?  The swirling part?   I was afraid only the top one be limey if I didn't give it a gentle swirl.

Nope, just checked the FAQs, it says to swirl.