Pets will be sold at different prices depending on how many traits they have, regardless of whether those traits are visible or carried, they're being sold in both tabs. I really need to clean out my stables to make room for a Nyketrie I just generated so I can put her in the females tab. See an unnamed pet you want that's not for sale? Ask me about it and we can discuss a price for him/her. Bear in mind, most of the pets being sold are offspring.