Ocu-GLO has an appropriate amount of Omega 3 fatty acids for the weight of your dog, however, some dogs (and humans) can tolerate higher doses if they need to take more for other diseases such as skin problems.
We recommend stopping the extra Omega 3 fatty acids while you begin Ocu-GLO, then after a week, you can gradually add in the other Omega product. If your dog develops diarrhea, then the amount of omegas is too high and do not use the extra dose.