Our water is pretty hard and I had heard Tetra Easy Balance would help with the PH and with phosphates. It is a liquid. On reading the instructions it says to use in water with good oxygenation and an air stone is essential. I don't have an air stone but have a Marineland 170 at one end of the aquarium (it is a 29 gallon) and a Whisper (made for 10 gallon) at the other end. Will this work instead of an air stone and if not, what do you think would happen if I put the Easy Balance in?? I put a PH adjuster (powder kind, different brand) in a ten gallon before and it made the water look like milk and the filters never could clear it out. I had to change the whole thing.