Greg, why are you so hung up on "what's in the bag?" People on this forum have posted that hydrated lime has been their product of choice for years, due to limited access to pond, ease of use, or whatever; and they have a good bloom all summer. I have a bloom with no fertilizer and neutral pond.

I would have told you long ago; you want to know, order a bag. Yes, hydrated lime washes out after a big rain. It's pretty obvious that when all or nearly oll the water is exchanged, the chemical makeup won't be the same. Yes, I understand that ag lime blended into the bottom will slowly replenish the alkaline components.
There is more than one way to 'skin a cat'.

Deb, you're losing way too much sleep tending to this forum. Check back when you have all Greg's questions answered(stocking rates & 'what's in the bag".