Well, since you have clown loaches which are pretty sensitive, we would have recommended no more than 3 tablets. But you dose once a day, not every 48 hours. And yes, do a partial water change prior to each dose, to keep up with your water quality. Once you are done dosing, do one last change, and place fresh carbon in the filter system. Water changes should be between 10 and 30% Add Tetra SafeStart Plus after the last partial water change to boost your biological filter.
Date published: 2017-01-04