WetWebMedia.com said:Pruning red mangroves is a sensitive matter and rather a moot point for most with consideration for their categorical slow growth in captivity. If you must trim your tree, be sure to resist and pruning until after the axial tip has branched. Damage to the lead tip before splitting can be fatal for young specimens While we are on the topic of growth as well, it should be interesting to note that irrigation of the leaves is nearly as much of a limiting factor of growth in Rhizophora as light and nutrients! Misting the leaves daily (or at least several times weekly) with purified water, as mineral rich water imparts clogging minerals, helps to rinse away the salt crystals exported through the leaves of this marine plant- a fascinating adaptation! With other aspects of good mangrove husbandry in order, a lack of leaf irrigation will still significantly reduce growth.