MtnDewMan, so sorry to hear about you crash your tank is been always one of my favorites truly an inspiration even since you had the 29 gls, I really like the way you acuascape the tank and the purple stagh in the middle is stunning!!!! looks super nice
Don't think it was too old. I just think it lost all of it's biodiversity and then stopped processing (recycling) the nutrients properly. I tested near the surface of the sandbed and had high phosphate readings. When I removed it the sulfide layer was only 1/2" below the surface, basically making most of the bed a nutrient sink even more.