Question

[Connor Elliott]

Why do plants turn a gooey brown? Do they revive over time?

[FrozenFins]

Sounds like a plant that is dying back. Plants die back often when bought from a farm. Most plants are at farms before your fish store/ pet store. At these farms the plants are grown emerged. The roots are in water and the leaves are not. So when you intorduce them into your aquarium they are getting adjusted to life out of water. Yes they will revive, all though many like to cut the leaves that are dying back.