So i picked up a glass diffuser and installed it last night. I placed it under a power head so the small bubbles would get blown around the tank. I simply unhooked it from my inline reactor, did not change any settings on the bps and let it run today. When i arrived home from work i noticed no pearling on the side of my tank and only minor in the front. With the inline i had good pearling over the entire tank when i arrived home. For the sake of science i want to give it another day but i have to ask, where do you guys position your diffusers and are you getting good results?