What is the biggest fish for an aquarium of 125 liters?

I know a lot about fish tank mates and how you can go in certain tanks, but just want to make sure I know as much as you can. so what is the length of the larger fish wize i could put in a tank 125 gallons of its 72 inches long 18 inches wide and 22 inches tall i need a length in inches please arrowanas also make huge are you sure my tank is large enough for a arrowana you please tell me the length instead of do not want an arowana fish until my parents to get their large tank of 400 gallons That is 125 isn't big enough anyway arowana deposit necessary wider and I have some smaller fish kill an arowana

The general "rule" should be that the fish should not be greater than the lesser extent of the tank to turn, so there should be no more than 18. " That should be adapted to any of the big catfish, a giraffe-nosed catfish (Auchenoglanis occidentalis), a few clown loaches, a black ghost knife, some of those freshwater "eels" (fire, tiretrack), iridescent shark, an Oscar, Jack Dempsey, Cichlid Buttikoferi, or channel catfish. You can also get a school of fish school a little smaller than the need for tank sizes for swimming space, as well as aluminum foil tabs or sharks bullet

125 gallon aquarium

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