Does changing 25% or 20% of the water everyday or 2nd day increase the chance of guppies giving birth soon, my female has been pregnant for almost 3 weeks and i am a virgin guppy breeder (i haven't bred before) so i am unaware of what it looks like when she is close to giving birth. I have read about the signs, tho knowing what to look for and actually what it looks like are two different things. thanks if anyone can help.