Time to revive this thread as i currently have a nano and will soon be setting up a 75g tank. On my nano i am focusing more on water changes with a little bit of B Ionic, and once or twice a week I'll drip a little bit of kalk. I recently got a clam and will be receiving 3 acro colonies in a couple of days in my nano so my demand is going to rise, so up we go on the b ionic and kalk 3 times a week. My parameters will be measured of course and the dosing will be done accordingly to results. Anyone using calcium chloride and/or baking soda? How bout Epsom salt? Any DIYers out there?