parotet
Member
Hi all
I got some time this weekend to think about a new nano vivarium (30x20x20 cm) I want to build during the next months (many thanks to Johnbol and Dominic for the inspiration and interesting exchange in the thread "My nano paludarium"). I have decided that I want to do it from scratch (first time I build a tank). It will be something like this:

The back and left walls will be covered with Hygrolon (glued with silicone) with the aim of becoming moss walls (probably some little ferns such as Selaginella). I will use an enriched substrate that will be planted with emersed aquatic plants. As far as I know, ensuring good ventilation in the tank is very important to avoid fungal diseases, although if I try to have two moss walls I will have to reach an equilibrium between good ventilation and dehydration. I want to keep the set up very simple: so no computer fans, no artificial light (probably some in winter), no pumps, etc. It has to work on its own (just add evaporated water and some water spraying). The substrate will be soaked with distilled water + ferts.
I have two doubts I want to ask to the most experienced folks:
1. Will this 3 mm slot on the front ensure enough (or too much?) ventilation? It will be just above the substrate line. This way I will be able to take pictures without having a line in the middle. The vivarium plans I have seen with sliding doors are too difficult for my skills…
2. I will cut the Hygrolon fabric a bit longer in the bottom to be in contact with the damp substrate, but I’m not sure if this will keep the fabric wet enough for growing mosses. I was thinking of making a kind of glass separation, parallel to the Hygrolon walls (3-4 cm height -same as substrate layer- and 2 cm width) to be filled with water and to keep the piece of fabric in contact with water. Of course this part would be invisible due to decoration.
Any feedback will be welcome 🙂
Jordi
I got some time this weekend to think about a new nano vivarium (30x20x20 cm) I want to build during the next months (many thanks to Johnbol and Dominic for the inspiration and interesting exchange in the thread "My nano paludarium"). I have decided that I want to do it from scratch (first time I build a tank). It will be something like this:

The back and left walls will be covered with Hygrolon (glued with silicone) with the aim of becoming moss walls (probably some little ferns such as Selaginella). I will use an enriched substrate that will be planted with emersed aquatic plants. As far as I know, ensuring good ventilation in the tank is very important to avoid fungal diseases, although if I try to have two moss walls I will have to reach an equilibrium between good ventilation and dehydration. I want to keep the set up very simple: so no computer fans, no artificial light (probably some in winter), no pumps, etc. It has to work on its own (just add evaporated water and some water spraying). The substrate will be soaked with distilled water + ferts.
I have two doubts I want to ask to the most experienced folks:
1. Will this 3 mm slot on the front ensure enough (or too much?) ventilation? It will be just above the substrate line. This way I will be able to take pictures without having a line in the middle. The vivarium plans I have seen with sliding doors are too difficult for my skills…
2. I will cut the Hygrolon fabric a bit longer in the bottom to be in contact with the damp substrate, but I’m not sure if this will keep the fabric wet enough for growing mosses. I was thinking of making a kind of glass separation, parallel to the Hygrolon walls (3-4 cm height -same as substrate layer- and 2 cm width) to be filled with water and to keep the piece of fabric in contact with water. Of course this part would be invisible due to decoration.
Any feedback will be welcome 🙂
Jordi