I think looks wise, it's harder to find a nice strain of managuense, but they are out there. Cubans are pretty consistent in the American hobby. I mean, they're both nice fish, some of my favorites. Cubans to me, personality wise, seem to be more consistently outgoing at a small size, less cautious. Jags seem to take a bit longer to come out of their shell, but it just depends on the fish. A nice looking and outgoing jag is a great fish to keep. Might be a bit harder to get a good pair bond with Cubans if you're wanting a pair.
Just personal preference, I prefer Cubans, but everyone should keep both at some point. So flip a coin.
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