Re: My first Journal. Trying out Rio Negro Biotope. Try a big shoal of cardinals as the main theme (overused maybe, but stunning in any tank and show-stopping in this one IMO) and then a smaller group of marbled hatchets at the surface, a pair of Apisotgramma nijsenni (a pair forming Apisto that come from similar blackwater habitats) and maybe some Otos or Whiptail catfish.
For plants I'd stick some Amzon frogbit in to float on the surface with its roots trailing down. Maybe a solitary small sword or two in the lighter areas too? |