Here's a couple of Rams we had. I had three layings from this pair. You can see the Females pink tummy. I was caught off-guard by the small fry size, and so never successfully raised any.
I bought five originally, 2 Males and 3 Females. But they were all very territorial, and it didn't take long for a couple of them to stress out. These two here paired up within a couple of days of getting them home. And we had our first laying a week later. Of course the other three were gone by then.
I think we had these two for three or four months before they died. I bought a couple more, but they hardly lasted a fortnight. I haven't bothered with Rams since, as much as I love those colors!