Order for Dosing 2 Part?

[Barrier Grief]

Assuming Mag level is already OK (1300ish), does it matter in what order I make 2 part adds? I've been adding Alk first, waiting a while, then adding Ca. I've noticed no issues, and just kind of got into the habit of doing it this way for no particular reason, but just thought about it and wondered if there is a "right" way to do it.

 

[kgross]

It does not matter, as long as you give enough time between parts to fully mix, or put them into different parts of the tank.

 

[disc1]

Some folks go day or night with the alk part if it is causing pH issues one way or the other, but aside from that there's really no right or wrong order to dosing 2 part. Like kgross said, just don't add them right together in the same spot at the same time.