I'm not entirely sure what you mean. My feeling is that Zebras are endangered, and those considering buying should weigh up whether or not they are going to fork out for a whole group and breed, or leave a single sale for someone who is. I love Zebras, but I wouldn't buy a single one just to show off in my tank, because to me it would be morally wrong. Many people aren't aware of the responsibilities that come with owning these plecs - it's not fair to buy one (in my opinion) if you're not going to breed them. Hope that clarifies where I'm coming from.