It is always best to stay away from bleach. Best to use vinigar. But if feel the need to use bleach, You need to be very careful. That is why I didn't say anything about it before, But if you do, rinse, rinse, and rinse again, Then you need to use a chorine detoxifier like Prime, This should make any bleach residue safe. I would suggest, If you still can smell the bleach in the tank, you need to let it air out for a few days, and rinse again.
Really the only reason I could think of maybe risking useing bleach, is if the tank you want to use for your fish, was at one time used for lizards. That is only because lizards carry dealy to fish salmanila viruses. But vinigar is a wonderful cleaner. I have yet had a hard time getting the most stubrun coralline alge off of anything.
Just fill the tank up with a few jugs of vinigar and water, let it soak overnight or a few days. This will loosen up anything in the tank, and let you know if the tank leaks, After a couple days, anything that is in that tank will come off very easily,
Just rinse a few times, and you are good to go. Hint: While the tank is filled up with the vinigar water solution, any other equipment you may have that needs to be cleaned to reuse for this set up. powerheads, heaters, filter intake tubes etc. can soak in the tank while you have it filled. Then everything can be ready at the same time.