Parameters drop in auto water change

[awais98]

Hi Randy,

I know you do continuous water change.

Knowing that, I finally setup a masterflex peristaltic pump for 5 ml/min.... 60 gallons a month continuous exchange in my brand new 240 DT setup.
My issue is the salt water that is stored in the 75g container drops parameters significantly.
I assumed I can keep salt water and it will stay stable for a month... less maintenance, but apparently not.

How do you keep the stored salt water from changing parameters?
Or does it matter if it is so slow exchange?
I will soon have a calcium reactor.... will that keep the numbers stable?

 

[Randy Holmes-Farley Verified Community Expert]

Have you detected the values in the new salt water to change? What salt mix?

Keeping it unheated and unstirred will reduce the likelihood of precipitation. I never worried about it and never measured it over time.

 

[awais98]

Have you detected the values in the new salt water to change? What salt mix?

Keeping it unheated and unstirred will reduce the likelihood of precipitation. I never worried about it and never measured it over time.

Thank you for your reply:

Kent marine salt
New fresh SW values were:
1.026
Dkh 11
Calc 560

3 weeks later, still in that container
Dkh 4,
Calcl 480

I always 'assumed' that there should be flow in the stored saltwater..... hence had a power head in there all the time.
Should I just not keep any flow after say 2 hrs of mixing the salt?
Do I need an air stone? Or there is no advantage either.
I Don't use any heater.... it's just 5 ml per minute....

Also I am liking the idea of not measuring any parameters there... it is safe to assume as it's such a slow exchange... the calcium reactor will take care of keeping it stable?

Thank you
Awais