So I had this 33x21x22 cm tank for qt of smaller fish, shrimps, etc. But I have two other qt tanks (45l and ~55l), so I don't need three, right? Sooo... why shouldn't it become a desk tank? It just did. One success - nothing bought for this tank!
33x21x22 cm ~15 litres tank
Pat mini in a matten filter (and some peat moss hidden there)
Heater - will be added later
Garden soil capped with mixed quartz sand (0,1 mm +1-2 mm)
Hardscape - some leaves and branches from my garden
Plants - mosses, some cryptocorynes, lotus, bolbitis
The tank will probably get a betta when I get a acrylic lid for it (I had a betta jump not long ago, lesson learned, won't buy a new one before I get a lid).