Thanks bro, little but confused by the question. I had the PH slightly under where it should have been for the first couple weeks of growth which led to a few problems. But whenever I did set it at a PH for example 5.6 I don't get a lot of swaying, .2 max. The only times it takes a while to stabilise is when I add water that hasn't been bubbled for 24 hours prior but still it's not uncontrollable, hope some of that helps!