CJS 68-16 Devil's Hole, DVNM, Ash Meadows, Nye Co., Nevada. 27 July 1968 1100 - 1145 hrs. PDT C. James & Lori Little This trip was made to alter conditions in the sectioned cage to stop the high mortality rate of adults in the sections. Picture taken on Shelf - Much algae I introduced spirogyra (washed as well as possible to avoid introduction of young and eggs) into each section and added another piece of float styrofoam for cover. 1100 hrs. Light i = 14.7 λ = 9.1 Completely overcast - only very light sprinkling. Good activity - ~150 fish on shelf I also replaced dead fish in some of the sections - Sections 1, 5, & 10 - new males necessary. and in section 10, I also added another pair - now there are two males + 2 females. Also in this section, I found an 8mm young which I removed because I believe that I introduced it while dipping. Still no young found in any other of the cages - No reproduction yet.