I would not pay money to introduce biological predators in an indoor grow. When I was young, I had a grow set up in the garage. I thought that I had pests and I randomly found some praying mantis egg cases. I brought them into my grow tent and put them on a couple of branches. As it turns out, I didn't have pests at the time, but one day at lights on I was able to witness one of the egg cases hatching and hundreds of praying mantises floating out. It was breathtaking. Since I didn't actually have any food source for them, they mostly just fought and killed each other immediately, with a few sticking around and most that lived making their way outside to find an actual suitable habitat. Long story short, if you don't have a sustainable food source/ecosystem for the rove beetles, I wouldn't be surprised if they end up branching out and infesting your house and the surrounding area. Good luck whatever you choose! Positive vibes...
~nugzz
Edit: Depending on the size of the grow. A warehouse, I might introduce a biological predator, but only after carefully weighing the pros and cons.