Ok, so what would you do?.......

[Emma01]

Hi all. I’m a little baffled.
I’ve been testing my KH and Ca daily for a while now. And I’ve felt the need to start dosing as KH drops to about 6.9 if I don’t.
I started dosing slowly on the 21/5/19 in equal amounts. (See picture attached) to the point I was dosing 2ml of both KH and Ca.
Now, this brought up my KH to 7.6, therefore I didn’t dose that day as I was going to do a W/C the next day (27/5/19) something came up and today, I’m about to do my W/C as I type.
KH today has dropped right down to 6.9- again!
Do I need to start daily dosing to keep it at the 7.5-8.0 range?
Why has my Ca increased and my KH dropped???
Salinity is a constant 1025-1026
I use Hanna checkers

I’ve a low nutrient, mixed reef nano tank (30litres) Use the Redsea blue bucket for W/C. There’s 4 SPS frags, mushrooms, Kenya tree, acan frag and the start of corraline algae on the glass I believe. The tank is 3+


Anyone help me?
Thanks
Emma.

 

[Jon Fishman]

How do the corals react? If everything is happy, I would feel fine running KH around 6.9

 

[Emma01]

How do the corals react? If everything is happy, I would feel fine running KH around 6.9

They’re absolutely fine + growth.
I’m just concerned that if KH drops in 2-3 days from 7.6- 6.9. I do weekly water changes, therefore by the time I do a W/C KH could be as low as 6-6.5

 

[dwest]

Hi all. I’m a little baffled.
I’ve been testing my KH and Ca daily for a while now. And I’ve felt the need to start dosing as KH drops to about 6.9 if I don’t.
I started dosing slowly on the 21/5/19 in equal amounts. (See picture attached) to the point I was dosing 2ml of both KH and Ca.
Now, this brought up my KH to 7.6, therefore I didn’t dose that day as I was going to do a W/C the next day (27/5/19) something came up and today, I’m about to do my W/C as I type.
KH today has dropped right down to 6.9- again!
Do I need to start daily dosing to keep it at the 7.5-8.0 range?
Why has my Ca increased and my KH dropped???
Salinity is a constant 1025-1026
I use Hanna checkers

I’ve a low nutrient, mixed reef nano tank (30litres) Use the Redsea blue bucket for W/C. There’s 4 SPS frags, mushrooms, Kenya tree, acan frag and the start of corraline algae on the glass I believe. The tank is 3+


Anyone help me?
Thanks
Emma.

Could your results just be variability in the test kits? Looks to me that your calcium is holding at about 400 ppm and your alkalinity at 7 dKH.

 

[Emma01]

Could your results just be variability in the test kits? Looks to me that your calcium is holding at about 400 ppm and your alkalinity at 7 dKH.

Possibly. I use the Hanna ones. I was aiming to get my KH about 7.5-8 it’ll give me a little room for ‘error’/shift

 

[dwest]

If I were you, and I wanted alkalinity of 7.5-8, I would increase both of the 2 part dosage evenly to obtain alkalinity that I want. I would dose every day, even on a wc day (blue bucket should not effect the levels much at all). I would test alkalinity often and check calcium much less frequently and only be concerned calcium was way out out range (maybe less than 375 and above 500 ish)

 

[Jon Fishman]

I would stop dosing altogether and let the salt mix balance it out