@acolotto, No need for you to dose yet. NEVER DOSE ANYTHING YOU DON'T TEST FOR! (That's #2 on my reef tank rules). Until you find that Ca
are dropping faster than a normal PWC
can keep up with there is no need to dose either Ca
. So test weekly especially as you add corals and they grow, and keep up with PWC
@Carey, I have those same jugs and pumps, but find that I need a daily dose. Much easier to have the doser pumps turn on for 20 - 30 minutes during the night and drop 1.1 mL per minute into the sump. Nice and slow so no coral gets an Alk
or Coral mass dose. That can happen when you use the jug pumps. With the Alk
you will notice a cloud spread out and cover a few corals before dissipating. Does it do any harm? I can't say for sure. But the slower dosing from dosers make me feel better about it.
I got some jug caps and drilled a hole just large enough for the tubing from the doser to fit through. One of them is such a tight fit that the jug compresses and caves in during the month. I just made the hole slightly larger last month.