[Commodore 64]

Got my scale from ebay, and my ferts from Rex Grigg and mixed up 500mls of each solution.

I didn't have the MgSO4 though, so I'll have to get some of that. I'll be dosing 2 tanks both probably low light, both with DIY CO2. On of them is a 75g, I've got 2 3L fermenting bottles on that one. We'll see how it goes. Drop checkers with 4 dKH solution are in the green...

 

[Commodore 64]

Oh, are the directions in the PPS thread for Epsom Salt? I probably have some of that septahydrate....
edit: just saw the thread below: http://www.aquaticplantcentral.com/forumapc/pps-analysis-feedback/57896-epsom-salt-mgso4.html

Now my macro formula is complete!

I used 500ml bottles because that's what I had leftover from a groundwater sampling round.

 

[Commodore 64]

/me slaps forehead.

Thanks for the help LeftC, as always.

 

[Commodore 64]

Let's go even further and use their CAS number!