Whyis my tank cloudy?

[Coralgurl]

I have the alk set to start dosing in the evening (5 pm) and mag starts in the morning (8 am).

It has not cleared at all since I started the thread, I will test calcium and alk and post.

[Coralgurl]

Alk is 6, ca 440. Water is starting to clear a bit but hard to tell with lights off.

[daplatapus]

Hmmm, I'm certainly no expert, but I didn't think alk would precipitate with just 440 Ca. Like Greg said we may be on the wrong track.

[Coralgurl]

It was higher at 460 earlier. The cloudiness happened fast. Will test again in the morning. Going to mix some new salt water now and do a water change tomorrow night. I've got an algae outbreak that started earlier this week, diatoms and cyano, last water change was Thursday last week.

[gregzz4]

Hopefully someone more versed will speak up ...
From what I understand, if you have too much Ca, it will precipitate at higher levels of Alk, higher than yours. Say, around Alk 8.5+ or even more.

I could be talking out of my butt here, so don't take this to be any kind of solid advice, as I don't even know if a dose of Ca could cloud your water

Just thinking it could be a dose of Ca that the water column couldn't absorb, so you have precipitate ?
You'd know tomorrow as it will coat some of your hardware ...

Anyway, I doubt it's an issue of dosing/params with your Alk hovering around 6

Must be something the critters did ( jiggy jiggy )