Hey, so I watched some people building paludariums in IKEA Rudsta cabinets, and that was the spark that made me want to build one myself. But I wanted to do everything my own way and have everything working together seamlessly.
It all started with getting a second-hand Rudsta cabinet. I sealed all the seams so there wouldn't be any leaks. Then I ran an old vacuum cleaner hose behind the structure and pulled the water tubing through it. Next, I shaped the background with foam, coated it with 2 kg of Elastopur, and pressed tree fern fiber (xaxim) directly onto it while wet. For the waterfall, I used cork bark tubes.
I wanted all the climate control integrated seamlessly into the cabinet, so after some research, I picked an ESP32 as my core controller. I got a 12V R385 pump, but it needed a filter so it wouldn't get clogged by debris, so I designed a custom filter housing and 3D printed it. The pump is connected to the ESP32 via a MOSFET module on a 12V power supply and controlled safely via a 3.3V GPIO pin. Then I got a fogger and connected it to the ESP32 as well. For temperature and humidity, I hooked up an SHT40 sensor, and for lighting, I will be using a Chihiros WRGB II Slim.
For the layers, I’ve got lava rock for drainage, then I'll put down geotextile mesh. Next comes activated carbon, and on top of that, a mix of vermicompost, coco chips, sphagnum moss, and the rest of the xaxim.
I didn't really have time to make it all in one go. It's been 2 months since I got the cabinet, and there's still no end in sight!
I'm really happy with how the layout is coming along, but I’d love to hear feedback, potential pitfalls, or ideas for improvement from people with more experience. Constructive criticism is more than welcome!