Water Changes And Cories

Without fail every time a few hrs after a water change my cories start laying eggs. As I only have 1 female will this stress her or will she be fine.

My tank for some reason is not female friendly. 20 khulI loaches 2 females 30 CPDS 1 female and 7 corys 1 female.

 

Lucky. My cories won't lay, no matter how much 'rain' I add.

 

It's a reaction to colder water that simulates rain runoff. Could always make it warmer and it might not do it. But I don't think it add stress

 

Lucky. My cories won't lay, no matter how much 'rain' I add.

I do about 70% water change every week and feed brine shrimp egg most days as well as dry fish food.
All my fish spawn continuesly except my danisons and SAEs. I'm hoping now ive added 3 more ottos to bring them up to 4 that I can catch them in the act. Theyre probably the only one whos eggs ill try and save to build up their school.

 

I wouldn't worry.