6 things you need to know about potassium in aquaponics

When it comes to interesting (and frustrating) nutrients in aquaponic systems, potassium takes the cake. Potassium is the most commonly deficient nutrient by far (9 out of 10 are a potassium deficiency). But that’s not all—potassium also has a complicated relationship with other nutrients in the system, which makes it tricky to manage.

Potassium is introduced to your system in the form of fish feed or supplements like potassium hydroxide or kelp meal concentrate. However, the potassium levels in most fish feeds aren’t adequate for both plants and fish.

This means that potassium is often deficient in aquaponic plants. This causes all sorts of problems.

Read more at Upstart University (Nate Storey)

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