Well, I suppose that if the only way to store the data is gonna be floppy disk, it would limit it's contents a lot...
My suggestion is:
Let the aquarium "as is" now, as a "main program", and next fishes, backgrounds, sounds... in separate floppys as "add-ons"...
I suppose an octopus (I know, I know, we still don't know what botton dweller will you add) will take some hundreds Kb, as I suppose it's mesh and animation will be fair more complex than a fish one... and a single floppy will be very limited
Well, that's only a suggestion
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