By Fiona Gallagher · permaculture designer · food, animals and preservation on 12 acres in Tassie
“After losing my first three tilapia to a heater failure in my Tassie shed, I now run a solar-powered backup system for every tank.”
— Fiona. If you can't eat it, it goes to the chooks.
ArticlesCalculatorsSite PlannerShopWant to grow your own protein without relying on the grid? Indoor tilapia farming is a no-nonsense way to feed your family, and I've seen it work on my 12 acres in Tassie where food, animals and preservation are the only things that matter. Here's how to set it up on a budget, using Aussie suppliers and AS/NZS standards.
Want to grow your own protein without relying on the grid? Indoor tilapia farming is a no-nonsense way to feed your family. Here's how to set it up on a budget, using Aussie suppliers and AS/NZS standards.
Start with a tank that's big enough to hold your fish and let them swim. Plastic or fibreglass tanks are best—glass is a no-go for long-term use. Bunnings and Jaycar have decent options.
| Option | Pros | Cons | Price (AUD) |
|---|---|---|---|
| Plastic Tanks (Bunnings) | Durable, cheap | Can crack | From $150 |
| Fibreglass Tanks (Jaycar) | Sturdy, long-lasting | Expensive | From $500 |
| Used Tanks (Facebook Marketplace) | Super cheap | No warranty | From $50 |
Tip: Always check for AS/NZS 3500.1 for electrical safety if you're using heaters.
Tilapia need water between 24-28°C. A submersible heater is your best bet. Get one with a thermostat and a float switch to avoid overflows.
| Heater | Power | Price (AUD) | Supplier |
|---|---|---|---|
| Submersible Heater (Amazon Australia) | 1500W | $120 | Buy here |
| Electric Heater (Bunnings) | 1000W | $80 | Bunnings |
Tip: Use a Jaycar voltage stabilizer to protect your gear from power surges.
Tilapia eat a mix of pellets and veggies. Buy commercial feed from local fish farms or make your own with oats and veggies. Prices vary, but you can save money with bulk buys.
| Feed Type | Cost per kg (AUD) | Supplier |
|---|---|---|
| Commercial Pellets | $15-$25 | Fish Farmers |
| Homemade Mix | $5-$10 | Local supermarket |
Tip: Feed them twice a day, but don't overdo it—leftover food rots the water.
Breeding tilapia is tricky but doable. Keep a ratio of 1 male to 4 females. Use a separate breeding tank and monitor water temps closely. Expect a 6-week cycle.
Tip: Check Victoria's agriculture site for AS/NZS guidelines on aquaculture practices.
Indoor tilapia farming isn't for the faint-hearted, but it is doable with the right gear and know-how on our Tassie acreage. I sourced the tanks from Bunnings, wired the electronics at Jaycar, and picked up specialty items from Amazon AU. One year, my pH controller failed mid-winter, dumping three hundred litres of water into the shed before I fixed it, but now the system holds. Stay sharp, keep the water clean, and you'll have a steady protein source.
Worth a watch: How I Started Raising Tilapia and Catfish - Small Scale Aquaculture · I'd Rather Be Homesteading
While many off-grid projects are achievable as DIY, certain situations require licensed professionals:
Always check local regulations and obtain necessary permits before commencing work.