From all the research that I have done since entering the hobby, the consensus based on those sharing their experience is that nothing even remotely compares to ADA Aquasoil II. So far I have only grown plants in Schultz Aquatic Soil, Fluorite, and ADA Aquasoi II. IME and what I have observed first hand, ADA Aquasoil II beats the others hands down. I hate to say this, but it is pretty much like a night and day difference. I would not even consider going back to fluorite or schultz aquatic soil and would gladly pay more for the ADA Aquasoil II for no other reason than how much better the plants seem to do in it, with all other things being equal.