Your roots look much cleaner and healthy now! If you were dealing with root rot, plain water won't fully kill off the microscopic bacteria in the tub. Using Silver Bullet Roots is a solid move right now to sterilize the system and prevent it from coming back. Just remember the golden rule of hydro: choose either a completely sterile reservoir using Silver Bullet/H2O2, or a beneficial bacterial system with Voodoo Juice. Never mix them together because the sterilizer will instantly kill off the good microbes. Also, keep an eye on your water temps and try to hold them around 18-20°C to permanently stop root rot from returning.