I would prefer to use something food grade quality. You can get them at Lowes or, for $2, firehouse subs sells their pickle buckets with lids and donates the money to recovering firefighters. You can also as your local Walmart bakery. Depending on the manager there, they sometimes give them away. You just need to clean both of these.
Why do I love fish? Because every time I stare into the little world I have created for them, every problem I have just floats away....