Hi brad, sorry I wasn't able to answer your question sa ACe thread... actually I am not that particular with ferts as I am not that fond of planted tanks... Side beat rako tabang didto kay sir gaevwa before... there are a lot of hobbyist in the ACE thread... yung si sir zen aquatics was actually the president ... he and the rest of the ACE members can really help. FYI, dili pud ko ACE member... thanks for directing the question to me jud