Other fish compatible with goldfish?

Question
I am currently raising healthy comet goldfish in a 125gal coolwater (68F) aquarium with two large double bio-wheels. I have plenty of room for more fish and would like to add several types of species other than goldfish if possible. Can you suggest any possible tankmates for my comets.  Thank You!!!

Answer
The only fish you can keep with Goldfish that I know of are Hillstream/Butterfly Loaches, Chinese Algae Eaters, some species Corydora, Weather Loaches and White cloud Minnows.  If you have adult Goldfish, remember to find fish that are big enough that they won't fit in your Goldfishes mouth.  If you choose to go with Corydora, you will need to raise your temp. to about 72-74F.