Greg, He takes it to a whole new level :mrgreen:

Oh, I can play that game

Just ask me how many times I re-built my sump, or re-configured my chiller venting :lol:

Plans are in head; not on paper
Plug away until it looks OK
Rip it apart and try again, over and over
Plug it in, let it run
Nope
Do it over, and over .... and over

That's my reefing DIY planning and experience

Now here is a serious dosing system!

https://farm4.staticflickr.com/3872/...43ae3336_c.jpg

other - dual head Cole-Parmer. It meters the amount, just need a controller the say when.

Other-calcium reactor

I use my calcium reactor for CA and alk. I use the BRS 1.1ml doser for my mag. I used to use 2 more for the Ca and alk, but the tank started consuming more than I wanted to buy, lol, hence the shift to the reactor.
Those pumps are rock solid, but I'd recommend always having a couple spare tubes on hand.

Aquatronica. Been running like a champ for 8 years now with my aquatronica controller. Don't know what I'll do when it craps out.

I use 2 BRS 1.1 ml dosers for ca &alk and keep it real simple with 2 digital wall timers with battery backup. I tune up my mg level when I do my water changes every 2 weeks.

Been using the bubble magnus with extend slave so 7dosing in total. I have been using it for 1.5 years now with no prob and use it to dose zeo along with 2 part.

I just ordered the jebao doser. Its fairly new and the reviews seem good and you cant beat the price. $120 and it has 4 pumps.