Hello everyone. About a week ago my blue gourmis had made a bubble nest and successfully bred. I removed the fry and once they became free swimming I started feeding them baby brine shrimp. Now I only had on beginner hatchery, one of those black circles from Hobby. It worked perfectly well (and it still does) but once it ran out I had to wait another 18- 20 hours for my baby brine to hatch. This is why I wanted to get another hatchery. However they are really expensive (I live in Switzerland so everything here is super expensive) and I didn't want to spend more money. So I decided to make my own. I looked on YouTube and there are hundreds of different videos on how to build your own. Also different ways to hatch them. I build mine from 2 plastic bottles using a razor, a screwdriver and a lighter. I also used an air pump and a simple desk lamp. Thats it. Really easy and simple to make. I added water, salt and the brine shrimp eggs. In about 18-20h they hatched. Both the fry and the adults fish (angels, gourmis, appistogramma love it). Here are some pictures and if you want to know how I built it I will be happy to explain it.