Best Mold Resistant Purple (hydro water above 70f)?

Is there a mold resistant purple plant for hydro where water temps are above 70f or is it best to grow in dirt during the summer?

I dont know about an indoor setup in hydro with it, but my BC Seedking "purp" never gave me a problem outdoors, even when others in the same spot were getting nailed by mold. Gotta love the purps, one of the best out there.