Needless to say, given the above remarks about likely sterility if the fishes are maintained in water whose chemical parameters are incorrect, prospective parents "must" be maintained in soft, acidic water throughout their lives if they are to remain capable of reproduction. Failure to do so will destroy any chances of success from the very start. Furthermore, it is highly advisable to filter the water of the breeding aquarium over peat, or alternatively use one of the commercially available 'Blackwater Tonic' additives to provide the necessary chemical environment conducive to reproduction. Parent fishes should, in addition, be conditioned heavily with copious live foods to bring them into prime breeding condition.