Planted Tank Guru
Join Date: Jul 2010
Location: British Columbia, Canada
Well, 80 is a little low for discus - I wouldn't go lower than 82-83. Remember, focus on the discus, not the plants.
As for the plants, as I said, most should do well, except for the HC (ok with CO2, but make sure you want to go that route - if you really want to suceed with discus, you might want to avoid it, at least at first until you become familiar with discus traits & behaviors - their likes & dislikes).
I don't have any experience with Gracilus and Hydrocotyle, so don't know how they would do.
Make it easier on yourself - stay away from unknowns, and stick to the tried & true methods with discus, especially in a planted environment, and in such a large tank as you're planning. As I said before - keep things simple - but in line with proven successful methods & approaches.
I honestly don't know what else to tell you, without sounding like a broken record.
Last edited by discuspaul; 04-30-2013 at 03:59 AM.
Reason: add words