I'm setting up a quarantine tank for some new fish and I am dropping a sponge filter into my currently cycled tank so I will have something to instantly cycle the QT. I looked on Amazon and the ratings are all over the place on check valves. I figured you folks will have some opinions. Lol. Which brand do you use/trust? I don't mind spending a few extra dollars for one that works well and won't fail on me. I'm planning on keeping a sponge filter running in my primary tank on a regular basis along with my HOB filter so I will always be prepared for an emergency. The pump will live below the tank when not on the emergency tank.