We often get proposals for developing sensors and associated “control systems” for aquaponics in our email and through our FaceBook accounts. I have some comments [Read more…]
The fish food we use is Rangen 1/8” floating catfish food. You can use any floating food that has about a 30% protein, 6% or more fat content, but TRY to find a fish food [Read more…]
There’s a lot of nonsense in the aquaponics forums and among the “experts” about how it’s neccesary to measure iron with this test kit or that; and then to “keep it within certain limits” [Read more…]
Ag water can be ditch water out of a ditch, or water out of a pipe that has come from some sort of an open water distribution system without treatment of any kind. It’s PROBABLY okay to use [Read more…]
Chlorinated city water is potable water by definition. It is relatively expensive, but you can safely use it for washing babies and drinking. Even filling up a big commercial aquaponics system [Read more…]
These systems are incredibly stable and dynamic; stable means they are rock-solid, and dynamic means they adjust to changes easily and (usually) with minimum damage. This doesn’t mean [Read more…]
Even though they never vary more than a few parts per million, we still test measurable nutrient levels in our systems. At least once a month! The people who taught us [Read more…]
We measure our water for: dissolved oxygen, measured with a digital DO meter that costs about $350 and is really accurate; nutrients (ammonia, nitrites/nitrates) measured with [Read more…]
We have started systems with water having a pH as high as 8.3 with no seeming ill effects, so don’t worry if your source water has [Read more…]