Hey everyone! Im having a mental breakdown! My Rio Plus 800 is acting weird. I have a clean tube running into my hang on refugium/skimmer from my pump. Just recently within the past few days, my rio has not been creating micro bubbles to feed into my skimmer while the clear tube is connected. Once I remove the tibe from the pump, it starts to blow micro bubbles and the second I put the tube back into the pump, no more bubbles. Any ideas of what could be causing this?

