low KH -- suggestions please

[geno]

Since I have been thinking about adding a CR -- and knowing that it is for maintenance -- not for elevating readings -- I decided to do a thorough water test. Below are my results -- and I could use some advice.

pH = 8.4 (API) (ACJr reads about 8.22 and drops to about 7.9 at night)
Nitrite = 0 (API)
Nitrate = 0 (API)
Phosphate = 0 (API)
Calcium = 460 (API kit) or 490 (Salifert kit)
KH = 6 (API); 4 (Elos); 5.2 (Salifert)
Magnesium = 1470 to 1500 (Salifert)

Based on the targets in the kits -- most of my numbers look okay-- except -- KH -- what is my best move to raise it to the target of 7 to 8 (per Salifert test kit)?

Thanks,
-gene

 

[acroholic]

Get your self a calcium reactor. Million threads on them here recently.

 

[geno]

Been thinking hard about a CR, Dave -- just one thing -- I think I have to get the nums up first -- and that was my question about the KH.

Looks like the proper dosing of Baking Soda could do the job.