Disinfecting former fish tank for frog

[Soli]

Hmm, so I bleached three times and rinsed countless times and the tank still smells like fish medicine (friend used it to treat the betta, it's the type you drop into the water). Is there anything I can do to get rid of the smell?

[Mentat]

Do you know what medication your friend used? I've been keeping fish for over 5 decades and never seen a "smelly fish medicine" that had a strong smell after mixing in tank; much less one with such persistent odor characteristics. Some do smell for awhile (i.e. Melafix) but nothing that remains after a water change or removal with carbon. Are you sure what you small is a fish medicine and not something else ?

[Soli]

Do you know what medication your friend used? I've been keeping fish for over 5 decades and never seen a "smelly fish medicine" that had a strong smell after mixing in tank; much less one with such persistent odor characteristics. Some do smell for awhile (i.e. Melafix) but nothing that remains after a water change or removal with carbon. Are you sure what you small is a fish medicine and not something else ?

It was something called maracide. But I think now I may have smelled something else. They gave me the medicine and it smells like play dough.
But, I used the Wipe Out and it doesn't smell anymore.