I'm sure this gets asked a lot. Recently got a pumping xenia, and it was pumping quite a bit for the past couple days, but wasnt really pumping much yesterday or today. I read that reducing the current near it would encourage pumping, so I pointed it slightly away from it and also removed the 2nd airstone that was at the back of the tank near it, any other suggestions. Water parameters are normal and its a 14g biocube