Male vs Female fry

i know they say that the PH and the Water temp effect the sex as babies but can someone clear this up and let me know exactly how to get a mixed ratio of fry.... It seems like i am getting a lot more males in the batches so any info will help

Apparently with kribs ph us a factor. I've read to try to keep the ph neutral for an even ratio of sexes. I doubt this is true with all fish though. I think it is pretty much just luck of the draw.

whats a neutral PH and do you adjust the PH when they are eggs or when they free swim.... whens the best time to do this

Neural is 7. I would get the ph to 7 and maintain it before and throughout the spawn. Would be a good experiment to see if it actually works.

ok its kinda hard to maintain thru the whole spawning process since everything is on a sump and there are like 10 tanks plumbed together let me see what i can do

I have tried multiple ways changing PH, changing, temp, changing tank size and my pair still only give me males. 7 lays and all offspring are male, I'm going to change females when I can find the right one.

If we're talking kribs, my water is neutral (use a bit of crushed coral to keep it at 7 since my water will drop in the low 6's if I don't), temp is 80F and for the most I get a fairly even ration m/f.