pH, ammonia and temperature

These are a few odds and ends you will need but have not been mentioned up until now.  There are two water parameters you need to monitor in the aquaponics system.  pH and ammonia.  The pH needs to be around 5.5-7.0.  I will usually adjust it at night to 6.4-6.8 then by the next night it gets down to 5.5-5.8.  To test for this I use a digital pH meter I purchased off eBay for under $20.  Took less than 2 weeks to come from Hong Kong.  It was tested it against a chemical pH test kit and it is accurate.


The pH is the yellow one on the left.   Next to is a ppm meter.   You need that one for a hydroponic setup but I don't hear it mentioned in aquaponics.  Then on the right is a Lux meter.  It is used to measure the amount of light.


In addition to pH the ammonia level needs to be monitored.  This especially important while the system is cycling.  I have chosen a ammonia tester that mounts in the tank and has a dot in the center that changes color as the ammonia level changes.  It has 4 levels from 'safe' to 'toxic'  It is just easier than the test strips or test tube and chemical test.  They say it lasts about a year on the package.  This is also the first time the three fish have let me get a good photo of them.

Next to the ammonia tester is a thermometer.  This just attaches to the outside of the tank.  It is large and easy to read.  In order to keep the temperature between 70-78º an aquarium heater is used.  During the summer down here in Florida it will be unplugged but in winter it is needed.


Then here is a picture of the tank setup.


One other tool I use is a Kil-A-Watt meter.


With this tool you can monitor how much power this setup is using.  I like to keep tract of how much money in electricity this is costing.  Not necessary but good info to know.