Reviewer:
Robert S.
from Broken Arrow, OK United States
This product works well in comparison to manual dosing the two part system several times daily. I would suggest getting two digital timers that allow turning on/off the air pumps multiple times daily. This will allow smaller doses throughout the day to minimize the impact to your PH.
Make sure that you allow the pumps to go an extra two minutes after each part is dispensed to ensure the lines are cleared and mostly dry. The solution (especially part 2) can crystallize in the tubing. This prohibits the solution from making it to the tank and seems to hit the check valves first.
Other than that, the doser works well and makes getting the correct amount to your tank easier.
Bionic Doser 
