Tampa Bay usually has Octopus mercatoris, not O. joubini. Actually that is good because O. mercatoris is a big egg species while O. joubini is a small egg species. That means that O. mercatoris does not have a planktonic stage and there is some hope or rearing hatchlings. Almost all references to Florida O. joubini are in fact O. mercatoris. March is when the most females are brooding, so it is a good time to get them if you want eggs and hatchlings although the adults will not be long for this world.
I currently have some O. mercatoris hatchings and they are doing well. During the day I never see them, but around dusk I had adult brine and amphipods to their tank. When I check later in the evening, the juveniles are up on the glass and I occasionally catch one feeding. They are cannibalistic, so don't expect to rear more than a few per tank.