Apex Trident Nitrate and Phosphate test For this reason

For this reason

use in conjunction with full Core line on a dosing device

Add 5 ml (1 capful) of product per 50 US-gallons of aquarium water every other day or as needed to maintain the calcium concentration within a range of 412 - 450 ppm

Potassium sulfate

Apex Trident Nitrate and Phosphate test For this reasonAutomated Nitrate and Phosphate Testing is Here! Reagents Store Neatly Inside the Trident Test Nitrate and Phosphate Automatically Once Per Day Compatible with A3 Apex (Apex Pro, Apex, Apex Jr.) or A2 Apex (Apex, Apex EL) Designed and Assembled in the USA Imagine a world where manual nitrate and phosphate tests are no longer apart of your aquarium maintenance routine. Now you don't have to imagine! The Trident NP is the latest innovation from Neptune