Dosing alot of ca and alk?

[Gman6766]

Looking for a little input here. I feel like i am having to dose alot for a tank that only has a handfull of frags in it. In order to mantain ca at 430, and alk at 8.5 i am having to dose 159ml of ca (b-ionic) and 180ml of alk (b-ionic) daily. My system total water volume is about 330 gallons, there is a 240 and a 90 plumbed together into the same sump. Wasn't sure if something is happening that I can't see or if just the product. I was thinking of switching product. I ordered some BRS 2 part to see if any difference. What do you guys think? What do you dose? How much? And what is your water volume?

 

[blaxsun]

Way, way too much if we're only talking about a handful of frags.

On my 200-gallon system (no water changes, so my alkalinity, magnesium and calcium dosing is higher) I dose ~80ml of alkalinity and ~20ml of calcium daily.

Mixed reef with some large SPS acros and plates.

 

[gbroadbridge]

Looking for a little input here. I feel like i am having to dose alot for a tank that only has a handfull of frags in it. In order to mantain ca at 430, and alk at 8.5 i am having to dose 159ml of ca (b-ionic) and 180ml of alk (b-ionic) daily. My system total water volume is about 330 gallons, there is a 240 and a 90 plumbed together into the same sump. Wasn't sure if something is happening that I can't see or if just the product. I was thinking of switching product. I ordered some BRS 2 part to see if any difference. What do you guys think? What do you dose? How much? And what is your water volume?

How old is the tank?

In a new tank you may find that the sand is clumping which can be using up both Alkalinity and Calcium.

 

[Sisterlimonpot]

Gotta ask, are you dosing them at the same time? Are they dosed in a high flow section of the sump?

I would suspect precipitation first, and work your way down the list.

 

[Gman6766]

How old is the tank?

In a new tank you may find that the sand is clumping which can be using up both Alkalinity and Calcium.

The tank has been up since January 2023. And I did notice some sand clumping/hard. I had stopped dosing untill I saw it stop getting worse and then broke it all up. And then started dosing again. Need to replace sand?

 

[Gman6766]

Gotta ask, are you dosing them at the same time? Are they dosed in a high flow section of the sump?

I would suspect precipitation first, and work your way down the list.

I have a trident dosing the tank I have cross checked calibration and numbers are matching within a few points