A detailed chart is included with this economical tester, listing the optimal levels of each element for various types of plants. It needs no batteries, and is very long-lasting. Why guess what your plants need when you can find out in seconds?
A detailed chart is included with this economical tester, listing the optimal levels of each element for various types of plants. It needs no batteries, and is very long-lasting. Why guess what your plants need when you can find out in seconds?