Do you know what your daily alk consumption is? Don't dose anything. Measure Alk exactly 24 hours apart to figure out your daily consumption. From there, assuming your new tank is using Alk, you can use one of the many online calculators to figure out how much to dose.My tank is new and from what ive read Randy say over and over again just to keep alk stable and no corals or very few just use baking soda and ive been doing that since my calcium doesnt change since nothings using it and my tank has been great and i do a water change only when nitrates get to 20 ppm other then that just mix a little baking soda with some tank water
less is more try doing 1/16th teaspoon of baking soda if it stays the same do an 1/8th and just check you will find how much you need to keep it stable at your 7.3dkh
id dose a very small amount of baking soda and re test the next day after doing that i figured out i only need like 1/16th of a teaspoon every 3 days to keep my alk pretty stable in between water changes
i maybe wrong in how i did it but your better off starting very small and uping the dose slowly until you get it stabalized
i hope i helped and didn’t give any wrong info
Just my personal experience and learning from R2R everyday =]
If you do need to make an adjustment (per Randy it doesn't appear that's required) you can increase alk by as much as 1DKH per day.