tank crash

[lizardal7]

hello, I just started my first reef tank 3 months ago. 60 gallon tank with a canister filter, I have a sumpless ATO, 2 vipar spectra lights at 30% and an rp-m v2 power head. I have have my temp set to 78 degrees Fahrenheit. I added my first corals about a month ago, ive started with finger leathers, toadstool, hammers, and pulsing xenia. everything looked great and I had quick growth with the xenia. all of a sudden over night I had all my corals showing skeleton or completely closed. All five of my fish died. I had 2 ocellaris, cherub angel, tailspot blenny, and possum wrasse. took a water sample to my local reef store, was told my water was near perfect but alkalinity was a little low. they have no idea what went wrong. was recommended to ad carbon to my filter and do a 30% water change. if anyone has any ideas on what happened or how to move froward I would love to hear it.

 

[Gumbies R Us]

Is it possible your tank was shocked to death? It sounds to me like some sort of equipment failure, especially if everything, including your fish, died overnight.

 

[00W]

hello, I just started my first reef tank 3 months ago. 60 gallon tank with a canister filter, I have a sumpless ATO, 2 vipar spectra lights at 30% and an rp-m v2 power head. I have have my temp set to 78 degrees Fahrenheit. I added my first corals about a month ago, ive started with finger leathers, toadstool, hammers, and pulsing xenia. everything looked great and I had quick growth with the xenia. all of a sudden over night I had all my corals showing skeleton or completely closed. All five of my fish died. I had 2 ocellaris, cherub angel, tailspot blenny, and possum wrasse. took a water sample to my local reef store, was told my water was near perfect but alkalinity was a little low. they have no idea what went wrong. was recommended to ad carbon to my filter and do a 30% water change. if anyone has any ideas on what happened or how to move froward I would love to hear it.

To be honest, you haven't given us much to go on so it would be helpful to know more about your tank.
Near perfect water conditions aren't very specific.
Anytime it all happens overnight could be due to due to complete equipment failure but usually it's from poisoning of some kind so think back to the day before it happened.
Chemicals in the room, air freshener, fly spray??
Kids throw something in the tank?

 

[lizardal7]

To be honest, you haven't given us much to go on so it would be helpful to know more about your tank.
Near perfect water conditions aren't very specific.
Anytime it all happens overnight could be due to due to complete equipment failure but usually it's from poisoning of some kind so think back to the day before it happened.
Chemicals in the room, air freshener, fly spray??
Kids throw something in the tank?

I just checked my tank with a multimeter, it read 0.0. My water temp is currently 78.2 set to 78. Salinity Is 1.026, alkanity is at 6, phosphates at .03. I added a dry rock the day before and 2 corals 3 days before that. I live by myself, I havent used any cleaning sprays in my house. When thinking of trying again, should I do a water change and wait a few weeks or completely restart? Should I take out the dying corals? My finger leather is turning black and melting

 

[lizardal7]

I just checked my tank with a multimeter, it read 0.0. My water temp is currently 78.2 set to 78. Salinity Is 1.026, alkanity is at 6, phosphates at .03. I added a dry rock the day before and 2 corals 3 days before that. I live by myself, I havent used any cleaning sprays in my house. When thinking of trying again, should I do a water change and wait a few weeks or completely restart? Should I take out the dying corals? My finger leather is turning black and melting

I did a 30%water change as soon as I saw what happened

 

[00W]

I just checked my tank with a multimeter, it read 0.0. My water temp is currently 78.2 set to 78. Salinity Is 1.026, alkanity is at 6, phosphates at .03. I added a dry rock the day before and 2 corals 3 days before that. I live by myself, I havent used any cleaning sprays in my house. When thinking of trying again, should I do a water change and wait a few weeks or completely restart? Should I take out the dying corals? My finger leather is turning black and melting

Sorry been working all day.
Sounds terrible.
Yes remove anything dead/dying.
How about some pictures?

 

[Tamberav]

Check impellers and magnets for corrosion.

Could you have lost power at all? If the canister goes without flow, it would be toxic when turned back on.

Where did you get the dry rock from that you added a day prior? Any chance it was used in someone's tank at some point?

 

[littlefoxx]

For your fish, were their mouths open when you found them? I had an electrical outage in the summer with no AC on a night that was about 95 degrees a little over a year ago and that killed all my fish

 

[jrill]

what did you recently spray around the tank

 

[Uncle99]

When all fish die suddenly, I lean towards parasite infection, possibly velvet to to kill speed.

Second to that, a poisoning but you ruled that out.

 

[sixty_reefer]

I just checked my tank with a multimeter, it read 0.0. My water temp is currently 78.2 set to 78. Salinity Is 1.026, alkanity is at 6, phosphates at .03. I added a dry rock the day before and 2 corals 3 days before that. I live by myself, I havent used any cleaning sprays in my house. When thinking of trying again, should I do a water change and wait a few weeks or completely restart? Should I take out the dying corals? My finger leather is turning black and melting

Have you got a picture oh how it looks now and a nitrate test?

 

[MnFish1]

When invertebrates as well as fish have a problem - there are 2 possibilities - .1. The fish had a parasite, one or more died - caused an ammonia spike. 2. It is another toxic issue or environmental issue - temperature, power outage, low oxygen, It can also be the leather coral releasing toxins that affected others causeing a cascade type effect. Sorry to hear - and I have probably not listed all of the possible causes - but - when keeping leather corals with others, I always try to run carbon - since they can release terpenes which can be toxic. Hope this helps - without more information its hard to guess what might have happened