Who Gives A Fish Forums

Anubias and Java Fern are your best bets. They don't need to be planted in the substrate, just attach them to rocks or driftwood. My Anubias has been growing fine in gravel for years, no extra nutrients needed.

Mine did the same when I had too much light. Reduced it to 6 hours and added floating plants. He's way more active now. Maybe try that?