Soda Ash or Sodium Bicarbonate for KH?

[wayner]

I have been using Soda Ash (BRS) for over a year now and everything appears fine - its what BRS recommends for daily dosing - I follow Recipe 1

[Reefer Rob]

I dosed onto the waterfall where my fuge emptied into my sump. Coated the sump in calcium carbonate.

[lastlight]

If there is any precip it'd end up in the filter sock and then most likely erode away from there. I have a lot of water going over the 2 foot wide overflow and when I sometimes need to adjust I'll toss 100mL directly in there and it's swished up crystal clear pretty fast.

[PFoster]

I have been using the Fauna Marin Sodium Bicarbonate for several years now on a dosing pump and am very happy with the results as you can keep you alk in the 7-7.5 dKh range and my pH is rock solid at 8.3

I would recomend that if you have a high coral load in your tank you should test often, especially if you are trying to maintain your alk close to NSW (7 dKh).