Help with Over Dosed Reef Tank with NOPOX

da_tahoe

New member
Hello all,

I need some help and advice. I woke up this morning and discovered my dose dumped half a bottle of NOPOX into my 175 gallon reef tank. It appears that i have some type of bacteria/algae bloom as the water is a milky color. Unfortunately I lost my yellow tang, anthias, sailfin tang. I performed a 40 percent water change and from what I've read so far I need to ensure I have air stones for O2 exchange. My two clowns are in QT but not looking good. I checked the levels and the nitrites were 0 and no signs of ammonia. my anemones are struggling and I'm hoping with another water change I can save as many corals as possible. Is there anything else I should be trying to do to save my tank? I've attached a couple pictures for reference. I'm so frustrated right now. I plan to continue running carbon and wet skim as much as possible. Not sure what would have caused the fish to die so quickly? Lack of oxygen? A quick spike in ammonia and then it dropped? Will I have to empty my entire tank and start over? My LFS recommended I use a product called Cycle after my water changes but I have never heard of it. I would appreciate any feedback and recommendations as right now I am at a loss. I hope this is the right forum to post this topic.

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I would perform as large of a water change as you can while running your skimmer on full blast and pointing your powerheads at the surface..
Large bacterial blooms can cause low oxygen levels.. I'd guess thats what led to the demise of your fish..
The more water you change the better.. Then its just a waiting game..

If you have another container you could transfer whatever you can over to it also (with a rock or 2 to have some bacteria in there).. Just watch for ammonia spikes there...

What brand doser BTW?

Sorry for your loss..
 
Thanks for the quick response. Unfortunately this is a lesson to have something larger for emergencies like this. I currently only have a 20 gallon QT with my clowns are in. I have another batch of salt mixing now and will do another change in a couple hours. I will try and do two water changes a day, hopefully that will remove as much of the NOPOX and other harmful stuff. It was a BRS doser. Which is odd because I have never had a problem with it before.
 
Thanks for the quick response. Unfortunately this is a lesson to have something larger for emergencies like this. I currently only have a 20 gallon QT with my clowns are in. I have another batch of salt mixing now and will do another change in a couple hours. I will try and do two water changes a day, hopefully that will remove as much of the NOPOX and other harmful stuff. It was a BRS doser. Which is odd because I have never had a problem with it before.

It would likely have been the timer that stuck on, the doser obviously will only work if it has power.
 
Thank you, I believe you're correct. Not sure why i never moved it to my APEX but was still using an old time from when I first began. Another lesson learned, very hard lesson at that.
 
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