I've been spraying the tank with a very weak mix of iron, CSM+B, and Potassium nitrate. The plants have been getting worse, but at least one is putting out a new leaf.
Yesterday I trimmed off all the leaves and stems that were rotting. I'm not sure if it looks better or worse without all the bad leaves. I'll put up a pic of the trimmed tank later. I also transferred some of the plants to my 25g.
I know the crypts will be okay because they have a root bulb thing that should keep them going, but I'm worried about the DHG Belem. Even with its tiny roots, will it be okay?