nope 85 0r 86 degrees
 

will give you a mix ...all of these can breed if they are even fertile to begin with (not all geckos are fertile to begin with )! less temperature more females ...... hotter temps (at about 90) will give you more males there is a difference in the amount of darker color with the temp-sexed females ... but its pretty subtle ...........all( could )be great breeders the only way is if u hatch out females at the high-temps ( maybe at ...but definately at over 90... not sure ).... they will be what is called a "hot-female" they are basically psychotic lol and will not breed or shouldnt be bred if its even possible ! they have behavior -problems etc. and i think its likely to be passed on to babies ......unless it makes them infertile ...not sure

actually females sell better ...since like sized geckos can be housed together
 

it is possible inc. the egg at a female temp (14 to 16 days is the time in which heat determines sex ..or 20 days just to be sure) ..... then step up the heat (90) to get the little bit more color and the faster inc. time !!!! temps must be raised very slowly ....or the egg will not hatch ...its tricky !!