Tubifex Worms:
They are threadlike truly aquatic worms, up to one inch in length. Experiment
conducted by aquarists in Europe over long periods of time indicate that, when fed properly,
they increase the size of adult fish, the number and size of young in a brood, and even prolong
the fertile periods of the fish. Tubifex worms are one of the natural foods for freshwater fishes
worldwide. Suitable for all fishes up to two inches. Start with at least one large culture for best
results. Practical for commercial use.