Hey Meth,
Mate im also on the lookout for a similar thing for a Live Bait tank, had a look in Bunnings today actually, no luck though, they pretty much just sell square storage tubs, not real good for live slimeys and such.
One of the boys from work mentioned seeing some in BigW, so i may go for a hunt around there tomorrow, allthough he is known to talk a bit of jibberish. I will keep you posted.
Do you think maybe somewhere like Clark Rubber or a Pool shop may have them?
just a suggestion..
cheers,
Chewsta...