Hi if you want to have great results with your corals one of the factors IMO is water change every week around 10%. The probiotic reef salt have probiotic bacteria , vitamins and Amino and as I know salts that you use before don't have that. As about ProBioF This is hard to compare products by weight vs value. These are totally different products.

20160406_135223
20160406_143426
20160410_185514
20160410_185640
20160410_185612
20160410_185600
20160410_185535
20160410_185715
20160407_104839
20151121_220229
20160410_195812
202130-50611387ac3d2e15c0c807ef750ef3f0
20160410_201057

20160417_084311
20160417_090240
20160418_165733
20160418_174833