Tubifex Worm culture could use cement tank, or other tank that have a long shape. That tank should have an water inlet in one side and water outlet in the other side. Tank is placed on shady site.
Tubifex worm culture media were made by mixing pond or ditch sludge with organic feltilizer about 100 grams/ m2 or rice germ about 200 grams/m2 in 5 cm thick. Add water to the media and left for 3-4 days.
After 3-4 days, add water and keep it flow in a litle debit. Put your tubifex starter of about 10 worm / hole in a hole that have made in every 10-15 cm.
Tubifex worm harvested after 2-4 weeks.