All the information listed here is based on my own experience, please carry out your own research before attempting to replicate anything on this site.
Aquaponics, in my opinion, is going to change the world. It's a very simple concept; fish waste makes a great plant fertiliser. When rearing fish, dirty water can be circulated through plant beds, reducing maintenance, and allowing the harvest of both plants and fish from the same system.
For the past year or so, I've been playing around with organic filters for my various turtle species. Instead of using powerful aquarium filters to trap the dirt in my tank and keep the water crystal clear, I've been using porous rock and huge amounts of aeration to encourage helpful bacteria species (Nitrobacter, Nitrosomonas etc) to grow in my enclosures, and keep my water quality high, even if it doesn't look it. These filters also make great plant pots, and I've grown numerous vivarium plants directly from them.
These organic filters are primitive aquaponic setups, but now I'm about ready to put them to the test, and start raising fish with them as well as turtles. Joining my menagerie this week are a handful of Mozambique Mouthbrooder fry (Oreochromis mossambicus), one of a number of species of commercial tilapia. At the moment, I'm raising them in a nursery tank, and feeding them crushed Hikari cichlid pellets several times a day, but soon I'll be moving them into a setup with a DIY aquaponics rig.
As you can probably tell from the photos, these are robust, characterful fish, with a big appetite. Adult males in particular are stunning in colouration, although they measure over a foot long (up to 39cm)! At the rate these guys are growing at, they'll be reaching that size in no time.
Everyone else in the zoo is doing well. I've devised some big plans for the Rhinoclemmys wood turtle vivarium (again!), so will be updating that in due course. Several enclosures have also been renovated, but I will save them for next week!
If you have any questions or would like any further information, you can contact me using the email address below.