prices from the store
calcium buffer 32 oz. $9.99, 64 oz. $14.99, 2 gal $24.99, 8 gal $79.99

magnesium 32 oz $9.99, 1 gal $19.99,

dried phytpplancton $6.99, $9.99, $13.99

they also carry everything from esv they are just waiting on another shipment to get the carbon and kalk mix