Live Rock In Quarantine?

[MarkoD]

ok so i set up a 25 gallon quarantine tank with a 15 gallon sump.

in the quarantine tank i have a powerhead, a few pieces of PVC pipe for hiding spots and a few fake plants

in the sump i have my heater and i transfered a few pieces of liverock from my main display's sump. the one piece of liverock has a bunch of sponges on it

is this ok for now? i have a bucket full of bioballs but i dont know what to use.

if i medicate the tank, will the good bacteria die or just the sponges and whatever little bugs are on the rock?