Who Gives A Fish Forums

If you're still struggling, try a plant-specific substrate like ADA Amazonia. It's pricey but worth it. My tank's been thriving since I switched, and I barely need to dose ferts anymore.

Don't forget CO2 if you're trying to grow anything beyond the basics. Even a simple DIY setup can make a huge difference. My Bacopa and Rotala exploded after I added CO2, though it's a bit sketchy to balance at first.