1: Mix some porridge oats with boiling water so it's a sticky but slightly firm consistency. Too wet and the culture tends to smell, too dry and the worms die out.
2: Once cooled, make a cm or so layer of the porridge in whatever plastic container you're using. Spread your worm starter culture across the top. Sprinkle with a pinch of yeast.
3: Place lid with airholes on, store container in a dark dry place - I use my fish cupboard.
4: Within 48 hours, you should start to see tiny wriggling worms climbing the sides of the container. Use a small spatula, a cotton bud, or your finger if you're brave, to swipe them off the side of the container, feed to fish. Put container away again, will have more worms climbing the sides daily for continued feeding.
5: Culture should last for a few weeks. If less worms are climbing or it starts to smell bad, repeat steps above, taking a new culture from the previous one by scraping the top layer off and spreading it over the new porridge. Start a new culture within a few weeks anyway, as the culture will start to die off after a while.
Ta da! You can now culture live food
Works for microworms, banana worms, walter worms. How much to feed depends on your fish. The worms are teeny, but stay alive in the water for a while, and if you sorta stir them into the water, they form a cloud of tiny wriggling food that floats for a while and allows all the fry to feed. If you're on top of substrate cleaning and water changing schedule and you're not putting tons in there, shouldn't cause a water quality issue.
