I don't know about horses and zebras but I had a shih tzu which almost succeeded in a romantic union with pretty much everything in the house over the course of its life including one very surprised tortoise and every cat we ever kept.
Anywho, hard to be 100% sure about anything but I would put my money down on jewels/rusties being unable to produce viable fry.
Although you might well get full mating behaviour right up as far as the female laying eggs I don't think the jewel could fertilise the iodotropheus eggs or vice versa.
Anywho, hard to be 100% sure about anything but I would put my money down on jewels/rusties being unable to produce viable fry.
Although you might well get full mating behaviour right up as far as the female laying eggs I don't think the jewel could fertilise the iodotropheus eggs or vice versa.