Throwback Thursday: What was your most memorable reefkeeping 'oops' moment?

[RichReef]

Wet floor. Left ATO valve on overnight.

Letting my salinity get to 1.035 due to a faulty hydrometer.

 

[Gumbies R Us]

Flooding the laundry room where my RODI unit is setup... I've lost count how many times now. Wife just laughs at me now.

I've come close to doing this a few times, except mine is in my bathroom downstairs in a cabinet haha.

 

[robanister]

Skimmer overflowed and put 20 gallons of water on floor. Poor kitchen ceiling.

 

[PapaFishRocks]

My most boneheaded moment was during my first year in reefing (I had lots of boneheaded moments that year...I still have them...but thankfully, they are fewer and farther between). I was dosing something (can't remember what) by hand, and I was also drinking a starbucks coffee. I got distracted in conversation and dosed my latte into the tank instead of what I meant to dose.

No ill effects thankfully, but my fish were wide-eyed, swimming faster, and seemed a bit jittery for a few hours.

I guess it was better than you drinking the dosing.

 

[vetteguy53081]

What was your most memorable reefkeeping "oops" moment? Share your story here!

Walking away from a running RODI unit

 

[Rmckoy]

So many ….
1) trusting a lfs foe advice
2) leaving the rodi running all night
3) transfer everything to a new tank and
Even added some of the gross sand from the 10 year old system

Instant crash . Killed everything

 

[Rubymoon286]

Flooded the bathroom with RODI when a float switch failed and ended up having to replace the entire floor. Years later, I've got a unit plumbed in directly and a mixing station

 

[Whispers]

When I dropped 2 radions in my tank smh

 

[brady88]

Making salt water a day in advance but forgetting the most crucial part… the salt and not realizing it until after I’ve added it to the tank after a big water change… luckily I realized it right the time of completely filling it up‍‍

 

[Joe.D]

My first water change… didn’t know to disable the ATO and had a bit of a salinity swing with all of that fresh water flowing in. Lost a Duncan after that, the heads just started to deteriorate. Not sure if it was due to the salinity issue or coincidental.

 

[Rich Klein]

7 years ago I accidentally dumped the entire load of pellets of an Apex auto-feeder into my 165 gallon reef tank. Kept the flow up and netted as much as I could for the next 2 hours. Thought I was going to have a heart attack.

 

[Dburr1014]

I calibrated my PH meter and dumped the liquid in the sump. OOPS.

 

[Coinzmans Reef]

Topping off doser containers and pouring calcium in to the alkalinity chamber, instant milk.