I'm doing 50% daily water changes with Prime now since my tank is still cycling and there's fish in there. I have an AquaClear 50 filter, Tetra Whisper 20, and a Lustar Hydro Sponge III filter. My question is do I need to unplug the filters before the water change? Or should I let it run throughout the change until the water level becomes too low for the water intake tube? Thanks.