Sicce pump cleaner accidentally poured into tank

[fisheriesdoc]

My wife intended to top off my freshwater turtle tank, but inadvertently dumped half a gallon of mixed since pump cleaner into the tank. Any advice on how to remove this stuff? I am starting my second full water change and swapping out all of the media. The tank is about 15 gallons.

 

[Blue Ring Octopus]

More than likely it is citric acid, can you test the PH? Can you remove the animals from the water?

 

[fisheriesdoc]

Thanks for the advice. pH is around 7, but I didn’t get a reading before the water changes. I removed the turtle as soon as I realized there was a problem but he was in the tank for 24 hours or so after the cleaner was added- I was out of town.