My 20g blackwater aquarium that is about 3 months old. It's my only "big" tank, compared to my other 5g small tanks. More info below.
Substrate: Pool filter sand of the Lighthouse brand
Hardscape: Assorted smooth river rocks and pebbles, Sumatra driftwood, oak leaves, guava leaves, alder cones, various seed pods and twigs from Tannin Aquatics
Plants: Persicaria sp. 'Porto Velho'
Livestock: Apistogramma cacatuoides 'Orange flash', Rosy tetras (Hyphessobrycon rosaceus), Panda corys (Corydoras panda), Orange Venezuelan corys (Corydoras venezuelanus), Otocinclus vittatus, Amano shrimp (Caridina multidentata)
