Raising Alkalinity Level

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Originally Posted by kien

Are you currently baking your baking soda? If the answer is yes, then you'll want to buy Soda Ash (Sodium Carbonate). If the answer is no, then you'll want to buy Sodium Bicarbonate from BRS.

You do not need or want to use both.

Once you start using BRS Soda Ash you wil find yourself in nirvana. It is so much easier to use as there is no baking involved and you can mix it in by hand easily. However, it is pricy and when you run out you do have to remember to order more. I frequently forget and have to bridge my BRS Soda Ash orders by using Baking Soda from the pantry

Yes, I use baked baking soda, so should get soda ash then.
I totally forget about pH effect. I do water change every two weeks and also test my water every two weeks a week after water change but I only check phosphate, Ca, KH and Mg. If pH raise that high do you recommend dose alkalinity in the night time? I dose 3 big things when lights on.