Does anyone know if its ok to keep CRS in higher ph say around 7.4? All the literature I have read on them seems to suggest they need a ph reading of about 6.0 to 6.8 however It seems to be a big hassle to always get the ph just right. I just got my shrimp today and they seem to be doing fine in ph of 7.4 just wanted to know anyone's experience on the matter. Thanks!