When I started my tank all my plants looked great...I introduced co2 and they thrived, I actually had to pull some of the runners out because it was just getting crazy.
I dose flourish once a week, but lately my plants are looking like hell. They're browning, leaves are falling off, deteriorating, etc.
What can I do to fix this?
Edit: it's a 10 gallon with a 24" finnex ray2 light and an aquaclear 20 filter.