I was wondering if anyone had used these before for hatching? We just got a tin of them and unlike the san fransisco bay brand we got in the 6g format at petsmart, this stuff isnt hatching very well. It is supposed to be 80% which is greater than the stuff from petsmart also. We measured out the salt to the instructed amounts and the ph required was the same as for SF bay brand. Despite this, we've had a very low hatch rate with these and cannot pinpoint the reason. Does anyone have any experience with this brand? Im trying to figure out if maybe the eggs are bad.