If TM Part C contains amino acids I would stop. Dinos can use those up faster than anybody.I have not verified which species I have. UV works on all species, just some better than others. I am also cleaning the rocks and sand, dosing Vibrant, adding Phytoplankton, changing socks every day, and doing my best to raise N03 and P04. I do think that dosing TM part C may be contributing to it. I need to ask BRS the question.