JBL Test Phosphate (PO4) (Recharge)
Recharge your Phosphate test with this economic pack.
If you still do not have the complete kit, you can get it by clicking here .
Phosphate is a very important element to develop the metabolism of fish. But by having a high number of fish, the phosphate will be high and will create an uncontrolled growth of algae.
The phosphate value should not be higher than 1mg/l.