WOW. That's all I can say.

I decided to go with the 1/2 oz per gallon (Ironically I only had enough to do that dose anyhow) which worked out to 70 oz for my 140 Gal. I put it in slowly and that fish INSTANTLY looked less stressed. They stopped gulping entirely. I'm sold.

Thanks so much again for your help. You helped save the souls of 60 tilapia. You're like a fishy Jesus. LOL.