Catfish cave made of clay rectangular shape
These clay front entrance burrows are rectangular in basic shape, making them ideal for stacking and leaving few gaps where mulm could accumulate.
You can also deliberately position them (even stacked) with a little distance between them, creating spaces in between that can be used as hiding places and shelter by juvenile fish.
We use stoneware clay for the production of our clay articles, which can be high-fired and contains a varying proportion of fireclay depending on the product.
On the one hand, this makes our caves very stable and durable. On the other hand, this means that the surfaces are never completely smooth, which provides an excellent basis for surface growth, which in turn is very readily grazed by the catfish.
This slightly rough surface of the cave also benefits the adhesive properties of most fish eggs without damaging the eggs. The eggs adhere better to the cave wall, minimising the risk of the eggs being flushed out of the cave.