Hey Rye I have used B-ionic from the start on my tank, along with dripping kalk now. The company, ESV, is located in Brooklyn NY and has a helpline listed on their website with two brothers at the other end that are very helpful. Great product. I like it especially for my nano because I'm able to adjust the doses easily according to my readings with a syringe, which is much more precise than powdered products.
I dose full strength kalk (1/2 gallon a night) and am now up to 8 mls of B-ionic daily as calcification in my tank is nuts (new pics in the nano forum!). Many people have to add MORE of part two, and I've spoken with the brothers about this. Apparently it's a result of your makeup water offering some buffering capacity, essentially starting already with some of part 1 really, thus necessitating more of part 2 (the calcium part). What I do instead is use some Liquid Calcium from Kent (2 mls a day) which is basically part 2 from B-ionic. I do this simply so that I run out of liquid in both B-ionic bottles simultaneously.
Daily dosing is ideal. Dose for a few days or a week and keep track of your readings. My dosage is constantly changing in my nano. Adjust your dosages accordingly.
Good luck Rye...
Johnny