ill just leave the tank sit dry for a few days, that should work, dont have bleach and rather not use it (to paranoid )
Should work for what? Fungus? Probably not. Bacteria? Maybe. Parasites? I shudder to think. You use dechlorinator, right? Check it out- bleach is CHLORINE. empty the tank, bleach it out good, let it dry in the sun, then dechlorinate it. Twice, if you're paranoid..
I really do get the urge to rescue. I've spent thousands upon thousands of dollars curing, rehabbing, and giving palliative care to rescued dogs. The problem its that if the best of intentions aren't tempered with good information, proper diagnosis, realism and a pragmatic approach then you don't end up helping anyone.