TheTodd
Aquarium Advice Addict
I agree with the prior statement that there is not a lot of black and white in saltwater aquariums, only guidelines. You certainly can't say that all equally sized fish would require equal living spaces. There are factors that come in to play that recommendations are based on. I doubt that stepping outside those guidelines means instant death to the fish, but I'm not sure I would pay zero attention to the suggested parameters and just throw any fish into any sized tank. Again, they might live, but it would not be ideal.