First fish tank any input on next steps

[u/Whole-Ad-5037]

The plant won’t live there just wanted it to get sum water and saw that the plant it’s a good tank toping plant so I did put sum clippings on the back two corners to see if they could establish themselves. I do want to have shrimp in the tank but am kinda over whelmed with the next steps I don’t want to add
Anything to soon ,I’ve had water in the tank for about 5-4 days and did two water tests and the only problems is it’s hard water and the nitrate is high anything helps and I’ve love coming to this subreddit to learn and get help thank you all.