I have 2 calves. They are about 8 weeks old. One of them has struggled on and off with very watery diarrhea. He has it again and it's a mess! It's everywhere. It seems to clear up and then, boom, it's back. He also has goopy eyes. They are off the bottle and eating hay and grain and growing fast. They are both acting completely fine. I haven't treated them with anything, although today I did try a packet of electrolytes in the water. Any treatment suggestions?