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How to Build a Bath Tub Worm Farm – Step by Step

How to Build a BathTub Worm Farm


Worm farming is a great way to get your garden growing without any extra work. All you need is a bath tub and some food for the worms to eat.

The worm farm will create its own compost, which you can use in your garden later on.

If you want to get started with worm farming, this guide will help you build a simple bathtub worm farm.

In it, you’ll learn how to choose the right food, set up the farm, and collect eggs for breeding. So, start growing your own food today with worm farming!

For the purpose of this do-it-yourself demonstration, we obtained all of the necessary components for our bathtub worm farm from our garden shed, Gumtree, and Facebook Marketplace.

Bath Tub Worm Farm

You truly can create a worm farm container out of nearly anything; all you need to do is exercise some creativity with the materials you already have and follow the same basic steps.

The following items make up our building supplies, which came to a total cost of just $79:

  • Get a bathtub for sale on Facebook Marketplace for $40.
  • Chicken wire (free from shed)
  • Drainage rocks ($8 20kg package from Bunnings)
  • Screening material (free from shed)
  • Hay or shredded paper (obtained for free from the chook pen or purchased from a nearby café)
  • Compost, dirt, and manure (purchased for two dollars at a roadside compost bin and manure pile).
  • 2 hessian bags (each may be purchased on Gumtree for $4).
  • Worms (available from Gumtree at a price of $25 for 1000 worms).
  • Door (free from FB Marketplace) (free from FB Marketplace)
  • Chairs that can be used as a platform (free from shed)


The Bathtub Worm Farm BUILD

The basic idea is that you want to provide adequate drainage, protection from weather and predators, and a generally weatherproof environment for your worms.

To begin, we used some of the old chairs that were stored in the shed to elevate our bathtub.

We could have constructed a platform for the bathtub out of an old pallet, which would have resulted in a much more attractive appearance; nevertheless, we decided to make do with what we already have.

  • To begin, place some chicken wire over the plug hole and any drainage holes that may be present.
  • Drainage rocks should be used to cover the bottom layer of the bathtub.
  • In order to prevent worms from falling into the rocks or down the drain hole, cover the rocks with a sheet of shade cloth or something else of a similar nature.
  • On top of the shade cloth, use the shredded paper to create a warm and inviting bed for your worms.
  • Add your own happy worms after each layer of compost, soil, or manure that you add.
  • The worm tea is collected in a bucket that is placed just underneath the drainage hole.


Bathtub Worm Farm MAINTENANCE

You should carefully use a watering can to hydrate your worms.

Your worm farm ought to have a consistent level of moisture comparable to that of a wrung-out sponge, but there shouldn’t be so much water that the worms are submerged in it.

In order to maintain a constant temperature, we followed up by protecting the soil by covering it with hessian sacks that had previously contained coffee beans.

We covered the entire bath with an interior door that we got for free on Facebook so that we could keep the chickens and possums out.


What to Feed Your Worms

Worm farming is a great way to recycle food scraps and turn them into organic compost. It’s simple to set up and can be done in just a few steps.

First, collect kitchen scraps – food mill waste, bones, and plant leaves – and add them to the worm bin along with a little water.

Let the bin ferment for two weeks, and after that, you’re ready to start feeding your worms. To do this, add your worms to the bin and give them food scraps twice a day.

Make sure to compost food scraps properly so that they don’t end up in the environment. Once your worms are fed and composting is taking place in the worm bin, you’ll start to see compost pile up.

You can use this compost in your garden or landscaping project. So, what are you waiting for? Start worm farming today!



We feed our worms:

  • most fruit and vegetable food scraps
  • tea leaves
  • egg shells
  • newspaper
  • coffee grounds
  • pet hair.

We do not feed them:

  • dairy
  • pet poo
  • citrus
  • meat
  • onion
  • chilli & garlic.


Before beginning to feed your worms, you should give them a few days to get settled in.

Our worms get food scraps that have been blended up in order to make them easier for them to digest. Because worms do not have teeth, you will see that they are able to ingest a significantly greater quantity of food if you grind up their meal for them.

During the first several weeks, you will have a better idea of how much food your worms are able to consume.

You don’t want the food to go bad before they get a chance to eat it because this will draw in other animals and will generate greenhouse gases, both of which we want to stay away from!

I only feed them on one side of the bathtub because it is so big. They only use one side. Castings will start to accumulate on one side of the bathtub over the course of some time.

When you are prepared to collect your castings, begin feeding the worms that are located at the opposite end of the bathtub. They will move downward, giving you the opportunity to harvest the casting from the opposite end of the room.

Castings from worms are an excellent medium for cultivating seedlings or for incorporating into food gardens.

Before it can be applied to plants as a liquid fertilizer, the worm tea needs to be diluted with water first.

There is a great deal of variation in the suggested dilution ratios; you should conduct some study on the internet to assist you in determining what works best for you.





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