Thanks for your comments. No, the plant on the left is a dwarf sagittaria. It's actually putting on new leaves, as has the dwarf crypt and banana plant. And of course, the hornwort is starting to need a trim.
I'm doing a 20% water change weekly. So far, the ammonia has dropped to 0 and nitrites and nitrates are high. PH is 8-8.2. I got acid and alkalinity buffers in the mail today. Going to do another change tomorrow.
Lastly, due to evaporation, I'm having to replace a cup of water every day. Do I/how do I dose this small amount of water every day? Thanks!
Bump: How do you remineralize your RO/DI water? I thought the stuff in eco complete would do that. How do you measure minerals?