Who Gives A Fish Forums

Thanks for the suggestions! I'll start with Java Fern and Anubias since they sound foolproof. Do I need to add any fertilizers for these plants?

I'm setting up a 20 gallon tank for guppies and want to add some live plants. What are the best options that won't get destroyed by them? I've heard they nibble on softer plants.

Likely zooxanthella expulsion, which isn't a great sign - you'll want to figure out what's stressing it out. Was there a recent change that might've triggered this?