I have too many leeches

Date: 11/12/2016

I looked at my leech tank. in my waking hours, I bought 10 leeches for a biology experiment. I received 11 leeches. that was a month ago, now (awake) I'm counting 12 leeches. leeches don't agametically reproduce, and there were no baby leeches in the tank. I dream my cat, Sekhmet, is eating one of my leeches. I'm counting 13, 15, 20 leeches. I panic.