I am going to post the rest of the mangrove info on
Reef Cleaners when I get the chance, but the server is a little slow today. You should ask the person in Hawaii selling them, if they don't know the difference, they aren't familiar at all with mangroves. Better not to buy from Hawaii anyway, their state government there allows live trees to be harvested which is causing habitat and erosion problems. nybyrne will be able to help you I am sure. The black mangroves can grow in the home aquarium, but it is a little trickier in a way, and easier in other ways. I don't have any experience growing white mangroves, although I know they live even further up the shoreline than black mangroves and will need extra soil, and are less tolerant to hydroponic growth, although black mangroves are pretty good at growing by hydroponic means despite being found at midshore. Red mangroves are the best, and are usually in the water even at low tide.