Thank you for that extremely well-thought out reply.
I have 3 guppies and 1 neon tetra that are living in the tank currently. Would a heavy teaspoon of baking soda harm the tetra? Guppies I'm not so worried for since they can tolerate some salinity, but the neon has been living through the crap my tank has been going through since June. I don't want to kill it now.