I know this comes up a lot but what is the latest thinking on a good ratio of PO4 to NO3? My nitrates have been trending down (currently 1) and my phosphate is going up (.144 per Hanna). Does this ratio seem a bit low at about 7:1? I have a pretty small bio load and don't feed much and then only once per day. I am wondering if I should does a little NeoNitro and increase the ratio since I have it on hand. Thoughts?