Join Date: Jan 2013
Location: Texas Gulf Coast
I wouldn't supplement with Calcium. It throws off the calcium/phosphorus ratio, and can actually lead to more problems than it fixes.
Also, what size "mug" are you using? You really should be using a standard 8 oz. measuring cup to measure out kibble. Use the directions on the bag as a starting point. If he starts looking too thin, up the amount. If he starts looking too pudgy, cut down a bit.