My new coralvue Xf-150 has not impressed. I realized yesterday evening one side is not working. Not sure when this happened. I cannot remember exactly when I got this, March-ish, I think. Took apart and cleaned three times with no luck. No vinegar soak, just a toothbrush. Ordered a RW 15 to replace. Once I get the Jebao in, I'll take the Gyre to the Fish Tank for repair. Deep sigh!