JBL ProAquaTest NO2 Nitrite & Refill Global recommendation medium (yellow)

medium (yellow)

Dragon Stone

the plants will not thrive

Adjustable flow rate and output direction

is CFC and HCFC-free (ozone-harmless)

JBL ProAquaTest NO2 Nitrite & Refill Global recommendation medium (yellow)JBL Pro Aqua Test NO2 Nitrite JBL Aquarium Water Test Kits & Refills Nitrite is a toxic nitrogen compound, which is formed when the bacterial balance is disturbed or when setting up a new aquarium. The test shows the exact nitrite content of the water Laboratory comparator system to compensate the inherent water colour: fill glass vials with sample water, add reagents to one vial, place vials in holder, read values off colour chart Use: when setting