some folks on here change their water a lot...like every 2 weeks...but I only change my water 2 times the whole grow...my last grow went 90+ days and I flushed when I switched to 12/12 and I flushed 2 weeks before harvest...as long as your plants are lookin good and your ppm and ph are right...I think flushing a lot stresses the plant...the water temp is different the level of nutes will be different...all this at once has to be a shock...
ya tahts what i was tihnking .. change it before i used my bloom nuets...my ppm and ph are both fine and my plants are lookin fine ...
one more question .. I fimmed my plants seem not to be growing vertically ..the sid growth is freakin crazy ..its getting as big at the main stem... when the top gunna kcik into gear?! haha