It's a freshwater heavily planted tank with SS+ grade crystal red and some red cherry shrimps. Several ottos (otocinclus catfish) and a Siamese algae eater guard it from algae.
Live plants. Foreground: dwarf hairgrass (Eleocharis parvula), java moss (Taxiphyllum barbieri) and perfect floating riccia (Riccia fluitans or Crystalwort) Central area: Nesaea red. and hairgrass (Eleocharis vivipara) Background plants: Vallisneria corkscrew and stargrass (Heteranthera zosterifolia)
Substrate: Flourite black sand Tank: 12"x 12"x 12" rimless custom-made glass tank Filter: Flivar 104 Light: 2x13W 6700K CO2: DIY with inline reactor Fertilization: according to EI, but with with smaller dozes WC: 10% once a week.