How DJ Built a Pond, Bog Filter, and Frog Habitat for Under $200


A couple of months ago, I put a pond in… and then discovered bog filters.

That’s when I found Kev’s videos.

They were the best I came across — no nonsense, simple, detailed, and most importantly… affordable. I’m disabled and on a pension, so keeping costs down was essential.

I’m based in Perth’s southern coastal suburbs, and my backyard needed a bit of life.


How it started

It all began with a couple of unexpected things:

  • solar fountain (gift from Mum)
  • small fibreglass pond liner (gift from a friend)

That was enough to get me started.

I dug the hole, added plants, and built a bog filter mostly from recycled and verge-side materials.

Apart from:

  • A small pump
  • A bulkhead outlet and seal
  • A few irrigation fittings

Everything else was reclaimed.


The problems along the way

It wasn’t perfect.

  • The solar fountain lasted two weeks
  • I had a couple of mystery water losses
  • At one point, the pond drained down to the pump level

I ended up adding a black liner over the fibreglass — problem solved… or so I thought.

It happened again.

Eventually, I worked out it was likely:
👉 Bog filter overflow blocked by frogbit

So I added extra overflow outlets.


The storm lesson

Then came a big storm.

I wasn’t ready.

Water levels rose quickly, and I had to scramble — diverting the pump into tubs just to stop the pond overflowing.

After that, I went back to Kev’s videos and built a simple overflow system using things I already had.


The turning point

Somewhere along the way, this project became more than just a pond.

Every morning now I:

  • Check the water
  • Sit by the pond
  • Watch what’s happening
  • Think about how to improve it

It’s helped me mentally, physically, and emotionally more than I expected.


Stage 2 & 3 – Frog Pond + Frog Hotel

I decided to create a safe space for frogs, so I added:

  • frog pond extension
  • “frog hotel” built from spare materials

This time I bought:

  • Native pond plants
  • Aqua soil
  • Pebbles

But most of it was still reused or gifted.


The moment I’ll never forget

Five days after finishing…

dragonfly hatchling climbed out of the pebbles.

It made its way up a plant label, dried out, and flew off.

That moment hit me.

I created the space for that to happen.


Total cost

👉 Less than $200 AUD for everything:

  • Fish pond
  • Frog pond
  • Frog hotel

Including the liner.


Final thoughts

This project has given me something I didn’t expect:

A calm, peaceful space that I built myself.

So thanks Kev — your videos and website helped make it happen.

– DJ


A Word from Kev

Every pond I build follows the same basic principles…
DJ didn’t copy my pond — she just applied the system in a way that worked for her space, budget, and what she had available.

That’s really what this is all about.

It’s not about copying someone else’s build — it’s about understanding how the pieces fit together so you can make it work for you.

And when you get it right… you don’t just end up with a pond — you end up with something you actually enjoy being around every day.

I also just want to say a big thanks to DJ for being so kind and generous in sharing her story and photos with the wider pond community — it really helps more people see what’s possible.

If you’ve built something you’re proud of, I’d love to see it.
You can share your pond here.


Courtyard pond

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Kev

G'day, I'm Kev. My pond and water garden started with simple aquariums. I have created many ponds and water gardens around our home: Fish ponds, Aquaponic systems, grey-water wetlands and bog filters. My favourite topic is water filtration.

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