Can anyone tell me if I can change to the Lucas Formula in mid grow? I have been using Flora Nova Grow and now Bloom ( both by GH ).Things seem to growing well with the FloraNova except there is alot of undissolved matter in the bottom of reservoir. I hear that the GH FloraMicro/FloraGrow dissolves more fully. If I do change, should I use GH Florakleen for a day or two before changing? Any help would be appreciated.