Bonus, glad it's working.Little bubbles have turned into volcanoes.
Your tap water is most likely chloramine rather than chlorine. Chlorine will evaporate if left open, chloramine will not. The chlorine-ammonia bond needs to be broken first. It is simple enough though. The raw ACV will likely do the trick. There are products for aquariums which you probably know of for this. I use one called tap water conditioner. It doesn't have any of the other stuff like fin treatments, it's just for chlorine. It takes 1 drop per gallon for chlorine and 3 drops per gallon for chloramine.
In a pinch, I've used lemon or lime juice.
You can add anything to the fermenting bucket, all food benefits from fermentation. I use the rule "diversity is key". Alphalfa would be a great addition. I add a scoop of wheat bran to mine for an additional protein boost and it kind of thickens up the mix to a nicer consistancy to deal with.
I mix in a little kelp/seaweed and flax seed since it's so hard to sprout.