My brother-in-law is debating wether he should build garden boxes or a small above ground pond in his back yard. Guess which gets my vote. I can build him a 12'x8'x2.5', about 1770g, filtered pond with two 750gph pumps for under $600. If he gives me the go ahead it will end containing redsided dace, gambusia, sunnies, brown bullheads, and a lmbass, plus a few crawdads. The plants will be in pots, except for some elodea, and be bullrusf and pygmy water lilies. Wish me luck.