Notes for taking Mangroves in your Sump....
1. Mangroves have strong roots and can grow (although they die before they are too large for me) and they can crack your sump if they get large enough (roots)
2. You MUST remove any fallen leafs. Leafs carry the chemicals removed from the water. If they fall in the water, they will start to rot after sometime and dissolve back in the water Which will bring the chems back in the water. So you need to monitor the leaf falls.
3. They need to have the leafs and top stem above the water line, but the roots in the sand/rocks. Same as Joel has in his sump.