well i have kind of a funny story, my buddy whom shall be kept nameless. decided to buy a 75 gal tank because he really liked mine. on a side note he had never kept fish before. anyway i told him i would help him set it up, well he got a little impatient, first he added the water in the tank and hooked up the filter and the heater before addind the substrate. next mistake he bought his rocks from home depot and just dropped them in UNWASHED............heres what happened
thank god there were no fish in there

thank god there were no fish in there