The Aquaponics Answers Book - How to Raise Tilapia & Grow Tasty Vegetables by Rebecca D. Powers

Author:Rebecca D. Powers
Language: eng
Format: mobi
Published: 2013-06-13T06:00:00+00:00

Cycling Equipment

Just as many other Aquaponics gardeners do, we use an API Freshwater Master Test Kit, like the one made by Aquarium Pharmaceuticals to monitor the ammonia, nitrate and nitrite levels. You’ll also need a submersible thermometer to monitor water temperature and a digital dissolved oxygen meter. During the cycling process, you’ll need to test the water frequently.

Maintaining PH

PH levels should be kept between 6.8 and 7.0 during cycling. If the PH rises above 7.0 start cycling the water. Discard water pumped from the fish tank and replace it with fresh un-chlorinated water. A good way to do this is to simply add un-chlorinated water to the grow beds while blocking the flow of fish tank water. This is why it's a good idea to have a spigot valve in your system. Introducing water to the planters rather than the tank allows time for the water temperature to adjust. Do this for quick intervals though, to avoid rapid change. If you have fish in your tank, the water PH must not change by more than 0.2 per day.

Tip: I suggestion using General Hydrophonics PH Up or Down to control the PH levels without having to add water to the tank.

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