Welcome to R2R! #WelcometoR2R
Sounds like the tank wasn't cycled at all and now are experiencing ammonia spikes which is toxic to fish.
I would strongly suggest reading these threads, all the info you'll need.
https://www.reef2reef.com/threads/cycling-an-aquarium.306554/...
Welcome to R2R! #WelcometoR2R
Definitely slooooww way down. Nothing good happens in this hobby fast. Likely adding all that stuff too fast caused the ammonia spike and the tank isn't ready to deal with it. Is all you added was the 2 live rocks or did you add other rock such as dry or dead rock...
#WelcometoR2R!!! Waterbox and Cade are other aquariums that are worth considering as well taking a look at a custom tank from Glass Cages (check with @Joe Glass Cages).
#WelcometoR2R!!! Make sure that you enter the Aqua Forest contest and submit as many bonus entries as you can. The details can be found at the following link:
https://www.reef2reef.com/threads/win-a-brand-new-oceanguard-reef-tank-from-aquaforest-and-other-great-prizes-5-winners.1000446/