storage tank help

[utiliy]

found a few 275g storage tanks that was used for non toxic madical grade silicone.....was wondering just how non toxic it is-and ok for the fish?

[xxbenjamminxx]

That is what the aging barrel I have was used for as well. So far I have not had any problems that I know related to water issues. I just used some bleach and water to wash it out a couple times, rinsed well, and used a dechlor at double strength.