i haven't seen a study on it , only for cold water species like salmon/trout, doesn't mean there hasn't been, but to get nitrates that low is extremely hard... for me anyways , i have them at 30 ppm right now and all my fish even very sensitive rainbows seem to be absolutely healthy and my rainbows have been in the tank for 2 years with way higher nitrates than 30, they were once at 80-100 , i am still new to this but every single fish keeper i know IRL , as well as my lfs said not to "fret" over nitrates just do my best to keep them on the lower side, i am getting different gravel soon so it should help as right now food, debris you name it gets trapped in the substrate.
so how do you get them to 0 im assuming lots of plants, regular 50 % water changes a week
and if at 0 wont your tank recycle? (like i said i am still learning slowly but surely)
as far as plants go im totally lost on that , i dose what i was recommended which is flourish excel, flourish comprehensive and root tabs.
so how do you get them to 0 im assuming lots of plants, regular 50 % water changes a week
and if at 0 wont your tank recycle? (like i said i am still learning slowly but surely)
as far as plants go im totally lost on that , i dose what i was recommended which is flourish excel, flourish comprehensive and root tabs.

