Doser

I used a medical doser for over a year to add supplements. I got it off ebay for $60 shipped and it did 2 channel equally dosed. It worked great.

When I do it again I will get an older 2 channel masterflex pump. or 2 separate pumps if need be. These things are literally deadly accurate and reliable as the are used for IV's at the hospital. Replace the tubing every 6 months to 1 year and you are good to go.

Watch out though some require a DC power supply. Usually the variable speed ones.
 
There are some high dollar at retail medical dosers that excel in accuracy and reliability. If you could find a deal on 3 of those, you'd be styling. Most people would be happy with 2 but I like to dose mag as well.

I've had very good luck with the BRS Drews dosers. No problems at all.

If I were in the market now, I'd probably go with the newer BRS dosers.
 
Grant, I have been looking at the BRS and I really like the design.

Owen, nice seeing you here again, how is your tank doing? I have seen one of the member using the medical doser and they are probably the best.

Ken, I am leaning toward the BRS and probably will start with two units and then add the mag in a future date. For your side tank, how much do to dose of each?
 
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