My tank has always had just below normal levels (always adding just enough to keep it up acording to the calculator kH 9 Ca 390). I had alright growth for a newish tank.
But lately with uni and work I didn't have time to do the tests, so justed added a decent amount every few days. Then I noticed alot of new tips and more growth than I had seen over two months. My params now are kH 12/13 Ca 500ish. Dont think it is just coincidence, maybe my levels were just too low before. Really happy with the results planning to let it drop down to maybe kH 10/11 Ca 450 then keep it constant and see what happens.