New to marine

Hello i am new to salt and would like to set up a simple 29 gallon with my goal being to have a shrimp/ goby pair or several pair and a small colorful/ active fish. Any tips or suggestions are welcome.
You can do a goby with a shrimp and there are many nano fish that would do well in a 29g system. I also replied in your other post.
Basics you'll need ammonia, nitrates, nitrates and high pH.

Sea water like... from the ocean? Did you get it yourself?
Well i have a 100 watt double bright Marineland 36" led that my friend used to grow mushrooms in a 10 gallon tank. I would like to spend around $150 and have mushrooms and other easy to care for corals.