I'll go ahead and post my 10 gallon "extra plant/goldfish turtle fodder" tank. It currently houses Gallium (Until I purchase and scape a 5.5 for him), as well as two female and two male guppies, a handful of ghost shrimp and ramshorn and acute bladder snails. The guppies, shrimp, snails, and many of the plants are grown to feed my goldfish and turtles, and others are just extra or babies im growing out to use in other scapes. Not the prettiest tank, not scaped, and poor substrate, but it holds and grows plants and snails well enough so I'm happy. I keep the duckweed in one half the tank with the use of airline tubing and scoop out a handful for the goldfish and turtles once and a while. Allows more light to reach the rest of the plants.