For my 20 gallon fish tank that will either temperarily house 2 common goldfish or permanently house 1 common goldfish, I am wondering if my setup is ok. I have 3 fake plants. One goes to the top of the tank and the others are low for variety. I also have an led air stone on the right side of the tank, and my 20 gallon filter is on the left, hopefully creating a flow of oxygen. The lid of my tank has an led light for the day time. I have a big fake white rock with holes in it the left corner behind the air stone, and the plants are towards the back, leaving swimming room for the goldfish. Btw it is a 20 gallon long. I'm hoping I did not leave anything out.I also added Prime to the water, and after every water change, I am going to add some Api goldfish protect to the new water I am putting in. Do I have everything planned out or am I missing something?