Thank you all so much for your help. I've had barbatus before and wondered why I had problems, temp too high. I have written down all the names and am on the hunt. There are a few here that I know I can get.Thank you again

Does anyone know of any corys that like their water on the cool side permanently? I am wanting to put a couple in my goldfish tank, which sits at about 20C. I know that cool water changes will stimulate some spawning behaviour, but what about cool water all the time?