What is causing my plants to grow slowly?
-Lights 6 hours (Marineland LED Strip Light) 5 inches away from plants
-Dose Seachem Iron, Potassium, and occasionally micros
- Nitrogen from fish waste
- My plants use to grow significantly faster, I can't remember what I did that dramatically reduced their growth.
- I don't think it is a nutrient deficiency because all new growth is very healthy and the old leaves are healthy as well.