Time to meet Captain! Although he might not be visible in the photo (he's camera-shy), Captain is our one-eyed fish. Missing his right eye, he is miraculously still able to swim and live like all the other goldfish. He sure is one hardy fish!
These are the 30 goldfish of our aquaponics system. Not only are they cute and energetic, they are an essential part of our ecosystem. After digesting the feed, the fish excrete the much needed Nitrogen in the form of Ammonia and Ammonium (NH3 & NH4+) into the water. The pump that can be seen in the photo pumps the nutrient rich water up to the plants. The nitrifying bacteria transform the ammonia and ammonium into Nitrite (NO2) and then Nitrate (NO3), which is absorbed by the plants as nutrients. (More on plants in the next post.)
No comments:
Post a Comment