100%hydrophylic;1066198 wrote: I keep a few in my refugium. they are planted in about 8 inches of substrate.
Mangroves prefer to be planted in some kind of substrate. Most of their nutrient uptake comes from the very fine, hair like roots that grow off of the thicker roots, and you wil get much more of the finer root growth if they are planted in substrate.
I also would recommend spraying off the leaves with RO/DI water to remove salt buildup once a week or so.