My three ducks are Mallards, and are nearly six weeks old. They have plowed through their spendy 50# bag of Mazuri waterfowl starter and now I am thinking it's time to transition them to something cheaper that I can purchase locally. Thing is, my local feed store only had Flock Raiser and layer pellets. I bought a bag of each. I'm not sure if I should mix it 50/50 or if the straight Flock Raiser is OK to give them, ooooorrrr...? (I have soon-to-lay chickens so the layer pellets won't go to waste.) Feel free to throw recommendations at me, I will beg the feed store guys to special order me stuff if that is what my duckies need!