Calcium is essential for plant health.
TrueNute Calcium Sulfate will not raise your PH, so if you have your PH where you want it, or you have a high PH, this is the calcium to add to your system water. Maintaining the correct calcium level can be tricky. Please purchase a calcium test kit to ensure you are maintaining the correct calcium levels as per the instructions included with your shipment. We have listed the test kit we use below.
Calcium Test Kit