I second navyscuba 100%. I just finished giving another newcomer the same advice
If you do feel the need to keep your fish (mind you they will likely develop disease and shortened lifespans form dealing with the stress of cycling), then you are going to want to buy a bottle of Prime and commit to daily 30% water changes for the next month or two.
Cycling without fish is SO much easier, faster, and of course you don't have to worry about the fish. While it is cycling, you can explore stocking options best suited for that size tank as well as
aquascaping ideas.
And last, but most certainly not least,

WELCOME to FishLore,

where we are ready to help with whatever you need.
(And enable you at every turn... did someone say
MTS?)
