There are many different type of aquaponics systems. These include media based, NFT(nutrient flow techinque) and DWC (deep water culture). Use this infographic to help choose the right system for you.
Mason Jar Aquaponics DIY [WAY too small for Bettas! Pinning for the self watering idea]
you could add some fish to your water reclamation tank for a small aquaponics system. Grow a few plants to feed the fish and this forms a closed system. There is no need to fertilize, the fish do it for you! Permaculture at its finest!
I would love to make it work and have a peek, love this:Learn How To Grow Vegetables Faster In Half The Time with Aquaponic 4 Idiots the Hottest Gardening Offer Available.
Six types of hydroponic gardening systems - Gardening And Living
cool 7 Herbs that Grow in Water More - Herb Gardening Today