I'm not sure if this exists or has been done before, but my plan is to hopefully get solid 'white'/clear platies. Got this idea after I got tiger platies and realized how transparent the females were, with the eggs and fully developed larvae being clearly visible, as well as very clear gills and organs. (Although can be difficult to see in photos but in person is super obvious.)
Currently I'm on my first generation and already got some good candidates, I was worried that it would be hard to get a mostly white male as colors are usually more prominent in males, however one of the juveniles I caught seems to be a male and is now chasing the female (Who unfortunately male of been fertilized before I moved to a seperate tank, but still has the clear appearance I'm looking for)
I kinda want to be able to breed them without the black tails, unless people think that's more desirable. Here's some photos of my current stock and the tiger stock to show the transparency.
I actually am not sure if there are any solid white (established) platy morphs, the closest I could think of is the coffee morph, when you search white platy most examples are solid white molly, with a few exceptions. So if there is an existing glass belly or even high quality white breed I'd love to know.