Anyone has experience keeping marine molly

[FishyFishy!]

There is actually quite a few different species that naturally start their lives in total freshwater and migrate their way down to saltwater as they get older. I know green spotted puffers, figure 8 puffers, pea puffers, archer fish, and mono sebae's have been known to be totally ok in a full saltwater environment as long as they are slowely acclimated.