my Nitrite is at 0.25 I have tried several 10% water changes of natural sea water and the home made concauction... No change. I have a 37gl it is 9 months old with 75 lbs of LR and a 3" sandbed. I fear I might be feeding to much but the fish seem to eat all of it and the little bit that occasionally gets to the bottom the hermits attack. Any suggestions? Thanks