Water params question

[allendehl]

Hello guys,

My water params are a bit off, even after a water change a week ago. They recovered but they may still need some help.

Note: Measures below are a week after WC

Alk: 9.9 (Dropped from 12.5 after WC)
Mg: 1170 (stayed the same after WC)
Ph: 0.25 (Went up after WC...odd)

I know Alk and Mg are a bit off, I only keep fish, inverts, some LPS and softies.

Thank you!

 

[thegrun]

I like the following levels for my SPS dominated mixed reef, but you should have a lot more room for error given the corals you kerp:
CA: 425
Alk: 8.0
Mg: 1350
Phosphate: <0.03

Stability is more important than a given number

 

[LeJeune981]

Alk was pretty high.. you use io salt if I recall.. so a water change would bring the alk down a bit..
Do you dose anything for alk?
Also..what is your salinity ?

My phos stays steady between .07 and .10
With or without gfo..
But will drop with a waterchange respectful to the amount of water changed...

You said yours went up... from a diff post you said normal is .01 to .03... and it went up to .25 with your water change.. what do you test With? I use a hanna... best 50 bucks I've ever spent...
Anyways... check your fresh salt water mix.. see if for some reason phos is getting past your ro/di

I read on here recently that some guy was having phos get past his because the local water adds alot of phos for some reason or another..he now runs gfo on his fresh salt water..

Anyhow.. something to look into

Sent from my SM-G930VL using Tapatalk

 

[Dr. Reef]

r you running heater or pump or both in your newly mixed saltwater bin all the time? if so it will deplete alk and that would be the cause of alk being lower.
mix salt in rodi water and once mixed let it sit without pump or heater.

 

[Uncle99]

Alk between 8-12 is fine. Mag is low, look for 1350, phosphate a bit high look for less than .03....calcium 400-450

As correctly noted above, ranges are important but stability is key...

 

[allendehl]

Thank you all. Yes, it was stable until it wasn't. I need to get it back under control. My concern was mostly Alk and Mg but I take that with the type or corals I have I can take my time to correct them naturally with WC and see if they go off again.

Thank you!!