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:

  • A solar fountain (gift from Mum)
  • A 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:

  • A frog pond extension
  • A “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…

A 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

About to build a pond… or already have one?

Sign up for my email list and I’ll send you DIY-friendly pond tips, along with a few helpful tools like calculators, gear recommendations, and more.


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.

Recent Posts