I have 10 Cory's in a 30 gallon tank. I have 4 Panda's, One skunk Cory, One Schultz's Cory, One Pepper, One Julii, One Bandit Cory, and One Elegan's Cory. I've wanted the Panda's to breed for a long time, but i've never tried to get it to happen. I've done some research, about putting cold water...