For your ferts for macros and micros try this site.

Aquarium Plant Food - hobbyist taking care of hobbyist …

Very cheap, good product, fast delivery. I am very happy with my plants using these products. I personally use the KNO3, K2PO4, and Plantex CSM+B.

I think you were on AC. You'll get a lot of answers there, you'll get the right answers here.

Good luck