Looking to build your own fish tank hydroponic garden? Learn more about aquaponic gardening, an efficient combination of a hydroponic garden with fish tank.

Nikhil Arora, co-founder of Back to the Roots, tends to wheat grass growing above a fish swimming in the Aqua Farm, at the start-up's office in Oakland, Calif. on Thursday, Aug. 8, 2013.

The Back to the Roots $100 starter kit includes with a 3 gallon tank, a water pump, gravel for the floor of the tank, grow stones for the planter tray, and packets of wheatgrass and radish seeds ...

Aquariums come in different shapes, sizes and styles. It can be a lone fish tank, part of main furniture such as a table or TV stand, or built in a wall. Kidde says aquariums can be put anywhere.