I am building a 1,112 gallon Amazon biotype. I want to have a big school of rhamphichthys rondoni but I would also like to have some Gymnotus species in there too such as gymnotus tigre, gymnotus coatesi, and apteronotus albifrons. I know the gymnotus knives are very aggressive, but I think 1,112 gallons is enough to have their own territory. What do you guys think about this??
