alrighty, so we're getting the bathroom renovated atm, and i'm keeping the bathtub that will soon be replaced to use as an extremely cheap (i.e free) pond. Now it probably holds 250-300 litres when filled up. Anyone have any ideas as to what to put in it? (bear in mind i'm already breeding guppies in a smaller tank) im looking for either something large that breeds frequently (my eel eats a lot) or something that would live quite happilly in it by itself or with one or 2 other tank (tub?) mates (also preferably it eats tadpoles as well, cos living in Queensland, theres an absurd amount of cane toads, and im not too sure if the little bastards will be able to get into the tub or not to spawn).