Tiger Worm Round Up

Me Sitting In Bath Tub Worm Farm

Back in September of 2009 I made two bathtub worm farms as I needed to increase my stock of tiger worms. Sales of my worms farms via the “Garden Shop” and Trade Me were going extremely well, however the demand had created a major problem.

Simply put, not enough worms.

Most folk don’t want to purchase a farm without worms as that would be akin to buying a car only to discover that the gas tank is empty.

Once the bath tubs had become operational all seemed to going to plan and I believed that any worm production issues would soon be a thing of the past. I had also purchased a third bath tub which would help to further increase the worm population. Little did I know that a few months later things would go totally awry.

Shifting Worms To Bath Tub

The first signs of trouble appeared when the tape I used to secure the weed mat to the sides of the bath started to come away. This happened due to a build up of moisture and hence the worms found their way into the bottom of the bath. Once in this area there was no way they could return to their food source and bedding above.

At this stage I realised that things would need to be changed as the worms were not staying where I wanted them and many were drowning in their own juice.

If you wish to see how the farm was originally put together it’s all detailed in this earlier post. It will also makes it easier to understand what I’m rambling about!

As shown below the problem was solved by using a larger piece of weed mat. This now meant that the upper part of the bath was escape proof.

Relined Bath Tub Worm Farm

Now the worms stay where they’re meant to and once again all is well down on “the farm”. Currently the tiger worms are producing about 5.9 litres of worm juice per week, all of which is used in the vegetable garden.

Feeding Th Tiger Worms

My motivation for writing this post is that others may have made a bath tub worm farm in a similar fashion and be experiencing the same problem. Hopefully this helps to set the record straight.

23 Responses

  1. Peggy
    Peggy |

    We use a lot of worm compost tea we make here on our organic farm in Tennessee and it really works wonders:) best of luck with your tubs:)

  2. Justin
    Justin |

    I hope it didn’t put you back on your orders for the little fellas.. I’ve just started selling my worms on trademe in Christchurch so I’ve semi-followed your post on building a bath tub worm farm so I can share more worms.

    Keep up the good work with posting – the more the better!

  3. Dean
    Dean |

    Your guide has been a great help. Hopefully will put one of these together during the week. It costs much less than a worm-a-round and is more the size I am after. If you have any further information that will help me please feel free to email me.

    I am mainly wondering what you have done for ventilation.

    Cheers again for the guide :)

  4. Ross Grubb
    Ross Grubb |

    Very interested in your worm farm project and all the benefits from the enterprise. What I would like to know is what do you use for bedding for the worms?

    Looking forward to hearing from you .

  5. Ross Grubb
    Ross Grubb |

    HI Rodney
    Thanks for your prompt reply, this info will get me started on my worm farm. Will keep you posted on my progress.

  6. Roslyn Nixon
    Roslyn Nixon |

    Dear Rodney,
    We are about to set up bath tub worm farms at the Taroona Community Garden in Hobart Tasmania. Does it make a difference whether the bath tubs are in the shade or in the sun? Does it make any difference whether the bath tub is made of plastic and not cast iron?
    Thanks for all the great information

  7. Darcia
    Darcia |

    Hi Rodney – do you find that your houshold provides enough kitchen scraps for the 3 tubs of worms or do you gather other households also? ( reading as at the date on here)

  8. Mike G
    Mike G |

    Rodney, just a couple of questions. How often do you empty the farm. Do you then introduce the worms to your garden of do you retain them for the farm.

  9. christi swart
    christi swart |

    I am about to start my “bathtub wormfarm” in two old baths. I am planning to sell the “tea”. How big am I going with 2 baths? how many worms do I need to put in the baths? do they need any ventilation holes in the bath itself? I am in South Africa!

  10. Debra
    Debra |

    Do you use treated or untreated timber in the bottom of the bath??

  11. Olmec Sinclair
    Olmec Sinclair |

    Hi. I am looking at doing something similar for use in out home garden. I was wondering if you have to add any water to the tubs to help with the ‘juice’ production or if the moisture comes only from the scraps and organic matter added?

    Also, am I right that the worm tea juice is diluted before use?


  12. Rebekah wilson
    Rebekah wilson |

    hello thanks for the informative blog our school is looking to make a worm farm and a bath tub one might just be the way to go.

  13. Rodney
    Rodney |

    Hi Rodney great idea you got there I was wondering if you know much about black soldier flies was thinking of using a bath tub and putting two 35degree ramps one on each side of bath etc, do you think its possible? Or do you know of any one that has. I have a bath tub that is made of fiberglass so I can drill holes easy for them to crawl up ramp and fall into collection bucket regards ROD

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