You better do so.
I acquired some new mantella which had to be in a seperate room.
Since they looked ok, i descided to put them in their viv right away.
Stupid mistake.
One became bloated so i did a check.
Lungflukes (worms?) came out of the test.
so after just 3 days in the viv,
i had to get them out again and tear down the complete thing to desinfect it.
A lot of extra work, what wasn't nescessary if i just quarantained them as usual.
So lesson learned again.
Always stick to quarantaining.
Even when you're more experienced.