Anyone find a difference in using cider vinegar or plain white vinegar? I would think the cider would be a bit better for mite prevention and since it comes from apples FF's would like it a bit better?
Unfortunatly you are ignoring a lot of prior work that has already been documented with the flies. The flies do not utilize D3 (capitalize is important as that is convention for notating it if you are not listing it as the chemical name, d3 doesn't mean anything) so they do not take it up or use it for calcium metabolism. It ends up being digested either by the excreted digestive enzymes of the larval flies or by microbial action.i used this method and it has proven to work with the d3 i believe it helps the FF's maggots get more calcium in them and maybe pass it on to their full adult form it has not been a proven factor but i helps the media with extra vitamins i look forward to a testing done in a lab and compare the results in the life span on the FF's and their "gut load" as we call it to verify the comparison