quEx168 [sax-3::GFP + odr-1::RFP]. Pick RFP+ to maintain. GFP is visible at higher magnification but fades quickly. Strongest GFP is in the head region. The Chin-Sang Lab recommends researchers use this strain instead of IC450, as sax-3::GFP expression in IC699 is more consistent than in the comparable strain IC450.