I was picking up some items(Peat Moss, Permanent Marker, Grid Paper) from Rite Aid and I cam across Garden Safe Blood Meal Source Of Nitrogen 12-0-0. I looked at the ingredients and the only think in there was 12% Nitrogen. I refused to buy until I got more info but when I did a search I couldnt find anything on Aquarium use. Would anyone know if this is safe to use? Only being 5 bucks I would think its worth it if its good to use.