Nope, but I just set mine to 6.0 and call it good.
After harvest, shake the HT out of the root balls as best you can before the root balls start to dry, rot, or otherwise disintegrate, and soak your HT in a tub of 6.0 water with some Cannazyme and an air stone for a week, mixing occasionally, then drain, rinse, and soak once more in fresh 6.0 water for a few more hours before use.
stinkyattic Reviewed by stinkyattic on . pretreating Hydrotron Am i soaking it in PH adjust water to 5.5 just like rockwool or is ther something more to it? Rating: 5