It depends on the corals, and which reaction they're having.
Chances are your lights aren't up to much and/or the shop lights weren't either.
What lighting do you have?
In any case, these softies are honesty about the hardiest things you can keep, very robust, so they won't die. I've found ones almost transparent that have bred, budded off and ended up in total darkness. After putting then in light, they've grown into full sized mushrooms, full of colour. You just need to take it all slowly. It's like a garden, nothing good happens fast.
Also, how old is the tank? New tanks are fragile and chaotic places, over time they smooth out. Yours look quite new.