Fish struggling all of a sudden

Did you happen to stir the sand when you did your water change ?
Nope, I have an auto change system. It sucks water and gunk from the back sump and puts new water in. I just got home, I'll provide an update shortly
 
Well this has to be the oddest experience I've ever had in my reef keeping experience. I've arrived back home to my aquarium as if nothing ever happened. Kinda like when your car makes a funny noise and you take it to the mechanic and it doesn't make the noise. All the fish are acting normal again and seem happy now.
 
This is what I'm thinking based on my experience and what the others have mentioned. Do you think adding some water conditioner, such as prime or Hikari ultimate, might help? It's just odd that this would happen after a water change, that should lower Nitrates, nitrite, ECT. I use filtered natural seawater (nutri sea) and I've never had any issues with water quality.
I’m definitely not qualified to answer that. I was just thinking out loud as to what seems most likely in my previous post.
 
Well this has to be the oddest experience I've ever had in my reef keeping experience. I've arrived back home to my aquarium as if nothing ever happened. Kinda like when your car makes a funny noise and you take it to the mechanic and it doesn't make the noise. All the fish are acting normal again and seem happy now.
You aerated the water, didn’t you ?
 
Just an update y'all.

Everything is still as of nothing ever happened, weirdest experience ever. I thanked my fish and the tank gods for the mild stroke. 1/10 do not recommend

Thank you everyone that tried to help out. This community is great.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

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  • Not yet, but I have one that I want to buy in mind!

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  • No.

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  • Other (please explain).

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