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2,805 Posts
I'm on record ad nauseum about my view on appropriate tank sizes for certain fish. I agree with darth6 about a 6 foot tank not being large enough for an arowana. I also do not think a 55g tank is suitable for an adult GT, infact I'm not real keen on any 4 foot tank for an adult GT. The 180g will make a good home for the GT though.
