Substrate/Fertilization

[Jeanne]

Hello...I am new to aquariums/fish. I just set up a 75 gallon tank (freshwater) and have planted:
Melon Sword, Anubias, Moneywort, Peace Lily, Crypt, and Wisteria. I was reading articles from this site on planting...I have only added fertilizer..the place I bought this from never mentioned adding any substrates under the gravel in my initial planting. Do you think I will be okay? The fish I have are:
2 small plecos, 2 black mollies, 3 green tiger barbs, 2 tiger barbs, 2 kissing gouramis (and I think they may have ich), 2 shrimp and a catfish that is called a shark (can't remember the name). I can't start over...should I be doing anything else to help these plants get started?

Thanks so much!

 

[StiX]

U can add some API root tabs to the gravel, these are absorben over a period by the plants roots

 

[Jeanne]

Thanks...I will try that!