My family and myself run a small saltwater aquarium shop. We have a 300 gallon 8 foot display tank that lost all its fish inhabitants overnight.. i don't get what happened; when I closed the shop last night all the fish were perfectly happy and healthy like they've always been. (We don't sell the fish in the display tank, they are ours) We had a beautiful unicorn tang that my dad has had for almost 5 years; one of the best looking clarkies you'll ever see, a gorgeous healthy comet, a little sixline, a fox face, yellow tang, and a very expensive achilles tang.. All of them gone overnight.
The salinity is at an exact 1.025, N & P's both next to none and untraceable amounts of ammonia. No signs of any stray electric currents.. Ive been doing this for a while and I wash my hands every time before I have to put them in a tank, and even then the only time I put my hands in this tank yesterday was to drop in their dinner like every night. The skimmer has some bubbles in it but nothing alarming, and I don't smell any sort of soap or chemical coming from it. And even more, the inverts and corals are all still perfectly fine. I would have figured if anything was contaminating or otherwise harming the tank the inverts would have been first to go, yet they are all still alive while everyone of our fish are dead. It was horrible this morning seeing these fish that we've had for years and years just all dead in one night with no apparent cause. Anyone have any ideas what could be wrong in our tank, because we are all stumped..
The salinity is at an exact 1.025, N & P's both next to none and untraceable amounts of ammonia. No signs of any stray electric currents.. Ive been doing this for a while and I wash my hands every time before I have to put them in a tank, and even then the only time I put my hands in this tank yesterday was to drop in their dinner like every night. The skimmer has some bubbles in it but nothing alarming, and I don't smell any sort of soap or chemical coming from it. And even more, the inverts and corals are all still perfectly fine. I would have figured if anything was contaminating or otherwise harming the tank the inverts would have been first to go, yet they are all still alive while everyone of our fish are dead. It was horrible this morning seeing these fish that we've had for years and years just all dead in one night with no apparent cause. Anyone have any ideas what could be wrong in our tank, because we are all stumped..
