Zoodiver;523409; said:Size can be looked at in a very simple method. Average length for an arapaima gigas is 10 feet. Some have been up to 15 feet. I've seen 14 feet in person, so it's not out of the question. Now put that length of your adult animal and figure out how it will fit in a tank/pond. Big circles, ovals or figure eight tanks/ponds are the best for them.
matt ... what you do consider adequate tank depth for a 12 foot diameter pool for gigas ??
i am working on either az 12 foot round or a 10x12 foot rectangle.........
thanks for you input !! johnptc