Ouch. try to put all fishes in that 10g for now until you have enough water to replace all the water on your 36 galLittle bit in both tanks. I am taking 10 gal out of the 36 gal today and 5 in the 10 gal all I have water for riggt now. My disply had stress coat in it too when I was trying to catch them..so had to make new water